In 15 Seconds
- Regularly staying up very late.
- Implies a habit, not a one-off.
- Common for work, study, or social life.
- Neutral to informal tone.
Meaning
This phrase means you regularly stay up very late at night, often past your usual bedtime. It suggests a lifestyle where late nights are common, whether for work, study, or social activities. It has a vibe of being busy, dedicated, or sometimes even a bit of a night owl.
Key Examples
3 of 12Texting a friend about weekend plans
I can't hang out Friday night, I'm going to `keep late hours` studying for my exam.
I can't hang out Friday night, I'm going to stay up late studying for my exam.
Describing a colleague's work style
Sarah really `keeps late hours` during product launches to make sure everything is perfect.
Sarah really stays up late during product launches to make sure everything is perfect.
Casual conversation about hobbies
My brother is obsessed with that new video game; he totally `keeps late hours` playing it.
My brother is obsessed with that new video game; he totally stays up late playing it.
Cultural Background
The existence of `keep late hours` reflects a societal shift where urban living and certain professions normalized activity beyond traditional daylight hours. As cities grew and industries developed, the need for round-the-clock services and the rise of leisure activities meant people began to 'keep' these later times. It highlights a time when the distinction between 'day work' and 'night work' became more pronounced, and social life extended into the evening.
Habit, Not a One-Off
Remember, `keep late hours` is about a pattern. If you only stayed up late once, say 'I stayed up late,' not 'I kept late hours.'
Avoid the 'Night' Redundancy
A common mistake is saying 'keep late night hours.' Just 'keep late hours' is the correct, natural idiom. Don't over-explain it!
In 15 Seconds
- Regularly staying up very late.
- Implies a habit, not a one-off.
- Common for work, study, or social life.
- Neutral to informal tone.
What It Means
So, keep late hours basically means you tend to stay up really late, night after night. It's not just about pulling an all-nighter once in a while. This is about a pattern of staying up past a normal bedtime. Think of students cramming for exams or someone working on a big project. It can also be for fun, like if you love gaming until 3 AM. It paints a picture of someone burning the midnight oil, maybe with a cup of coffee nearby. It’s a common way to describe a lifestyle, not just a single event. It’s like saying your internal clock runs on a different schedule than most people’s. Did someone say sleep? We’ll catch up on that later!
Origin Story
The phrase keep late hours likely emerged from a time when 'hours' referred to specific blocks of time for work or social activities, especially in urban settings. Before electric lights, staying up late was a luxury or a necessity tied to specific jobs or social events. Think of watchmen, innkeepers, or people attending balls. These professions or activities inherently involved 'keeping' or maintaining activity during these 'late' hours. It's a bit like how we talk about 'business hours' today, but for the nighttime. The 'keeping' part implies intentionality – you are actively choosing or needing to be awake and active during those later periods. It's older than Netflix binges, but the feeling is similar!
How To Use It
You use keep late hours to describe someone's general habit of staying up late. It's usually about a regular pattern. For example, 'My roommate keeps late hours because she’s a night owl.' Or, 'I have to keep late hours this week to finish this report.' You can use it about yourself or others. It’s a descriptive phrase. It tells people about your schedule or lifestyle. It’s not usually used for a one-off late night. You wouldn't say, 'I kept late hours last night because I watched a movie.' That’s just a late night. But if you watched movies until 2 AM every night, then you keep late hours.
Real-Life Examples
Imagine your friend is always tired during your morning Zoom calls. You might say, 'You seem tired; do you keep late hours?' Or maybe you're filling out a survey about your lifestyle. It might ask, 'Do you tend to keep late hours?' A vlogger might say in their video, 'My schedule is crazy right now, I’m keeping late hours to edit this footage!' Even in a job interview, if they ask about your work habits, you could say, 'I’m flexible and can keep late hours if needed for project deadlines.' It’s a flexible phrase for describing a nocturnal tendency. It’s like saying, 'My social life happens after dark.'
When To Use It
Use keep late hours when you want to describe a consistent habit of staying up late. This applies to work, study, hobbies, or social life. If you're talking about your own routine, it's a good way to explain why you might be groggy in the morning. It’s also perfect for describing someone else's lifestyle. For instance, 'He’s a musician, so he naturally keeps late hours.' It fits when you're discussing productivity or energy levels. It helps set expectations about when someone might be most active. It's great for casual chats or even more formal discussions about work schedules. It's like a secret code for 'I'm not a morning person.'
When NOT To Use It
Don't use keep late hours for a single, unusual late night. If you stayed up late once to finish a book or watch a finale, that's not keeping late hours. It’s about repetition. Also, avoid it if you mean someone is simply working overtime occasionally. While overtime might involve late nights, the phrase implies a more ingrained lifestyle. It's not for describing someone who is generally awake early but just had one late night due to an event. If you're talking about a baby or a young child who *has* to stay up late because their parents do, it might sound a bit odd. They aren't 'keeping' the hours; they're just there!
Common Mistakes
Learners sometimes use keep late hours for a single event. They might say, 'I kept late hours last night watching the game.' This isn't quite right because it implies a habit. A better way to say it is, 'I stayed up late last night watching the game.' Another mistake is using it too formally. It’s generally informal to neutral. You wouldn't typically use it in a highly academic paper unless quoting someone. Think of it as friendly advice, not a scientific term. It’s like wearing pajamas to a board meeting – usually not the best fit! Here are some common mix-ups:
✗ I kept late hours to finish my homework yesterday.
✓ I stayed up late to finish my homework yesterday.
✗ She keeps late hours because she has a flight tomorrow.
✓ She has a flight tomorrow, so she'll be up late.
Similar Expressions
There are several ways to say something similar! You could say someone is a 'night owl.' That's very common and informal. 'Burning the midnight oil' is another classic, often used for studying or working hard late at night. If someone is 'up all night,' that's more extreme, implying they didn't sleep at all. 'Working the graveyard shift' specifically refers to working overnight hours, usually at a job. 'Burning daylight' is the opposite – wasting time during the day. So, keep late hours is somewhere between 'night owl' and 'working the graveyard shift,' focusing on the habit of staying up late.
Memory Trick
Think of a clock face. Imagine someone physically *holding* or 'keeping' the clock hands past the usual bedtime, like 10 PM or 11 PM. They are actively making the clock 'keep' those later numbers. So, keep + late hours = actively staying awake during the late numbers on the clock. It's like they're in charge of the time, making it stay late just for them. It's a bit whimsical, but it helps connect the words to the meaning. Plus, who doesn't love a good visual?
Quick FAQ
Is keep late hours formal or informal? It’s usually neutral to informal. Can I use it about my job? Yes, if your job requires late nights regularly. Does it mean I never sleep? No, it just means you often stay up late. It doesn't exclude sleeping, just the timing of it. It’s about the pattern, not the total absence of sleep.
Usage Notes
This idiom is generally neutral to informal. It's best used to describe a consistent habit rather than a one-off late night. Be careful not to add redundant words like 'night' (e.g., 'keep late night hours' is incorrect). While it can be used in professional contexts to explain work habits, avoid it in very formal writing.
Habit, Not a One-Off
Remember, `keep late hours` is about a pattern. If you only stayed up late once, say 'I stayed up late,' not 'I kept late hours.'
Avoid the 'Night' Redundancy
A common mistake is saying 'keep late night hours.' Just 'keep late hours' is the correct, natural idiom. Don't over-explain it!
The Rhythm of the City
This phrase really took root as cities became hubs of activity that didn't stop at sunset. It reflects a modern, often urban, pace of life.
Use it About Yourself!
Don't hesitate to use `keep late hours` to describe your own schedule. It's a great, concise way to explain why you might not be a morning person.
Examples
12I can't hang out Friday night, I'm going to `keep late hours` studying for my exam.
I can't hang out Friday night, I'm going to stay up late studying for my exam.
Explains why the speaker is unavailable and implies a dedicated study session.
Sarah really `keeps late hours` during product launches to make sure everything is perfect.
Sarah really stays up late during product launches to make sure everything is perfect.
Highlights the colleague's dedication and work ethic during busy periods.
My brother is obsessed with that new video game; he totally `keeps late hours` playing it.
My brother is obsessed with that new video game; he totally stays up late playing it.
Uses the phrase informally to describe a common, relatable habit.
Finals week vibes! 📚☕️ Guess I'll be `keeping late hours` for the next few days. Wish me luck!
Finals week vibes! 📚☕️ Guess I'll be staying up late for the next few days. Wish me luck!
Modern social media context, relatable for students facing exams.
Interviewer: 'Are you comfortable working flexible hours?' Candidate: 'Yes, I often `keep late hours` to meet deadlines.'
Interviewer: 'Are you comfortable working flexible hours?' Candidate: 'Yes, I often stay up late to meet deadlines.'
Shows adaptability and willingness to go the extra mile, framing a personal habit positively.
I'm not much of a morning person; I tend to `keep late hours`.
I'm not much of a morning person; I tend to stay up late.
A simple, direct explanation of one's natural sleep-wake cycle.
✗ I `kept late hours` last night watching the new series on Netflix.
✗ I stayed up late last night watching the new series on Netflix.
The phrase implies a regular habit, not a one-time event.
✗ Yesterday, I `keep late hours` because I had a party.
✗ Yesterday, I stayed up late because I had a party.
The past tense 'kept' implies a past habit, but 'yesterday' points to a single event. 'Stayed up late' is better here.
My cat `keeps late hours` too – she thinks 3 AM is prime playtime!
My cat stays up late too – she thinks 3 AM is prime playtime!
A lighthearted, humorous application of the phrase to an animal's behavior.
I've been `keeping late hours` all week finishing this project, I'm completely drained.
I've been staying up late all week finishing this project, I'm completely drained.
Connects the habit of late nights directly to feelings of exhaustion.
As a freelance graphic designer, I often `keep late hours` to accommodate clients in different time zones.
As a freelance graphic designer, I often stay up late to accommodate clients in different time zones.
Explains the reason behind the habit, linking it to professional necessity.
Wow, you really `keep late hours`! I could never survive on so little sleep.
Wow, you really stay up late! I could never survive on so little sleep.
Reacting to someone else's routine, common in online commentary.
Test Yourself
Fill in the blank with the correct form of the idiom.
`keeps late hours` is the correct idiomatic expression for staying up late regularly.
Choose the sentence that uses the idiom correctly.
Which sentence correctly uses the idiom?
The idiom `keeps late hours` refers to a regular habit. Option B describes a recurring activity (studying every semester), making it the correct usage. Options A and D describe single events, and Option C is too general and doesn't imply a *late* habit.
Find and fix the error in the sentence.
The idiom is 'keep late hours'. Adding 'night' is redundant and makes the phrase sound unnatural.
Fill in the blank with the correct form of the idiom.
The present continuous form `keeping late hours` is used here to describe an ongoing action or a temporary habit related to the current week's work.
Find and fix the error in the sentence.
Working the graveyard shift means working overnight. People who do this typically *don't* keep late hours; they keep *overnight* or *unusual* hours, which is the opposite of late evening hours. Using 'normal hours' clarifies the contrast.
Choose the sentence that uses the idiom correctly.
Which sentence correctly uses the idiom 'keep late hours'?
Option A correctly uses the idiom to describe a habitual behavior (the dog wanting to play late). Option B describes a single event for a specific purpose. Option C describes a single past event. Option D describes a reason for *not* keeping late hours or for staying up late *once*.
Fill in the blank with the correct form of the idiom.
The phrase 'keeps late hours' already implies a habitual nature. Adding adverbs like 'often', 'usually', or 'habitually' is redundant and makes the sentence clunky. The context of 'demanding job as a surgeon' strongly suggests the habitual nature.
Find and fix the error in the sentence.
The idiom is specifically 'keep late hours'. While 'working hours' is understandable, it's less idiomatic. The phrase 'keep late hours' implicitly refers to working, studying, or social activities during those late times.
Choose the sentence that uses the idiom correctly.
Which sentence best captures the meaning of 'keeping late hours'?
Option B correctly describes a habitual pattern linked to a profession. Option A describes sleeping late, not staying up late. Option C is a single event. Option D is too general; 'holidays' doesn't automatically mean late nights for everyone.
Fill in the blank with the correct form of the idiom.
The present continuous 'keeping late hours' fits the context of a temporary but intensive period of study leading up to exams.
Find and fix the error in the sentence.
The idiom is 'keep late hours'. Adding 'sleeping' is unnecessary and slightly alters the focus. The phrase implies activity or wakefulness during late hours, not necessarily just sleeping.
Choose the sentence that uses the idiom correctly.
Which sentence uses 'keep late hours' appropriately?
Option C correctly implies a regular habit during weekdays, contrasting with weekend behavior. Option A describes opening hours, not a personal habit. Options B and D describe single, albeit important, events.
🎉 Score: /12
Visual Learning Aids
Formality Spectrum for 'Keep Late Hours'
Used casually among close friends, maybe with slang.
OMG, I totally `kept late hours` last night gaming!
Common in everyday conversations.
Yeah, my roommate `keeps late hours` because she's a night owl.
Can be used in most general contexts, including mild professional settings.
I tend to `keep late hours` when I have tight deadlines.
Generally avoided in very formal writing or speeches.
The report indicates that the team `kept late hours` to ensure timely completion.
Where You'll Hear 'Keep Late Hours'
Talking about study habits
Finals week means I'll be `keeping late hours`.
Describing work schedule
My job requires me to `keep late hours`.
Casual chat with friends
You seem tired, do you `keep late hours`?
Explaining personal routine
I'm a night owl, I naturally `keep late hours`.
Social media post
Late night editing session! #keepinglatehours
Job interview
I don't mind if I have to `keep late hours`.
Comparing 'Keep Late Hours' with Similar Phrases
Scenarios for 'Keep Late Hours'
Academic Life
- • Cramming for exams
- • Writing essays
- • Late-night study groups
Professional Life
- • Meeting deadlines
- • International client calls
- • Project crunch time
Social Life
- • Late-night hangouts
- • Concerts or events
- • Gaming sessions
Personal Habits
- • Being a night owl
- • Enjoying quiet late-night hours
- • Creative pursuits
Practice Bank
12 exercisesMy brother is a musician, so he often ______.
`keeps late hours` is the correct idiomatic expression for staying up late regularly.
Which sentence correctly uses the idiom?
The idiom `keeps late hours` refers to a regular habit. Option B describes a recurring activity (studying every semester), making it the correct usage. Options A and D describe single events, and Option C is too general and doesn't imply a *late* habit.
Find and fix the mistake:
I need to keep late night hours this week for the project deadline.
The idiom is 'keep late hours'. Adding 'night' is redundant and makes the phrase sound unnatural.
I can't meet you for breakfast tomorrow; I'll be ______ because I'm working on a big presentation.
The present continuous form `keeping late hours` is used here to describe an ongoing action or a temporary habit related to the current week's work.
Find and fix the mistake:
He works the graveyard shift, so he doesn't keep late hours.
Working the graveyard shift means working overnight. People who do this typically *don't* keep late hours; they keep *overnight* or *unusual* hours, which is the opposite of late evening hours. Using 'normal hours' clarifies the contrast.
Which sentence correctly uses the idiom 'keep late hours'?
Option A correctly uses the idiom to describe a habitual behavior (the dog wanting to play late). Option B describes a single event for a specific purpose. Option C describes a single past event. Option D describes a reason for *not* keeping late hours or for staying up late *once*.
Given her demanding job as a surgeon, it's no surprise she ______.
The phrase 'keeps late hours' already implies a habitual nature. Adding adverbs like 'often', 'usually', or 'habitually' is redundant and makes the sentence clunky. The context of 'demanding job as a surgeon' strongly suggests the habitual nature.
Find and fix the mistake:
I admire how you keep such late working hours for your startup.
The idiom is specifically 'keep late hours'. While 'working hours' is understandable, it's less idiomatic. The phrase 'keep late hours' implicitly refers to working, studying, or social activities during those late times.
Which sentence best captures the meaning of 'keeping late hours'?
Option B correctly describes a habitual pattern linked to a profession. Option A describes sleeping late, not staying up late. Option C is a single event. Option D is too general; 'holidays' doesn't automatically mean late nights for everyone.
As a student preparing for final exams, she found herself ______.
The present continuous 'keeping late hours' fits the context of a temporary but intensive period of study leading up to exams.
Find and fix the mistake:
My neighbour keeps very late sleeping hours.
The idiom is 'keep late hours'. Adding 'sleeping' is unnecessary and slightly alters the focus. The phrase implies activity or wakefulness during late hours, not necessarily just sleeping.
Which sentence uses 'keep late hours' appropriately?
Option C correctly implies a regular habit during weekdays, contrasting with weekend behavior. Option A describes opening hours, not a personal habit. Options B and D describe single, albeit important, events.
🎉 Score: /12
Video Tutorials
Find video tutorials on YouTube for this phrase.
Frequently Asked Questions
20 questionsIt means someone habitually stays up very late at night. This isn't just about one late night, but a regular pattern of being awake past a typical bedtime. It often implies dedication to work, study, or a social life that extends into the night.
It's generally considered neutral to informal. You can use it in casual conversations with friends or colleagues. While it might appear in some professional contexts, like explaining your work habits, it's usually not suitable for highly formal academic papers or speeches.
Yes, absolutely! If your job requires you to regularly work late into the night, like being a nurse, a chef during dinner service, or an IT professional on call, you can definitely say you 'keep late hours'.
'Keep late hours' describes a general lifestyle or habit of staying up late regularly. 'Burn the midnight oil,' on the other hand, usually refers to working or studying intensely late into the night for a specific, often temporary, purpose like meeting a deadline or preparing for an exam.
Not exactly, but they are closely related! 'Night owl' is a noun referring to a person who prefers to be active late at night. 'Keep late hours' is a verb phrase describing the action or habit of staying up late. You could say, 'As a night owl, I tend to keep late hours.'
No, it doesn't necessarily mean you don't sleep at all. It simply means your schedule involves being awake and active during the later parts of the night, often past what's considered a typical bedtime. You likely still sleep, just perhaps at different times or for shorter durations than someone who keeps early hours.
You shouldn't use it for a single, isolated late night. For example, if you stayed up late just once to watch a movie, you'd say 'I stayed up late.' The idiom implies a consistent habit or pattern, not a one-time occurrence.
It's generally not used for children unless they are exhibiting a very unusual, persistent habit of staying up late against normal routines. Typically, children's sleep schedules are dictated by parents or school, so they aren't 'keeping' the hours themselves in the same way an adult might choose to or need to.
A very common mistake is adding 'night' to the phrase, saying 'keep late night hours.' The correct idiom is simply 'keep late hours.' The word 'late' already implies nighttime in this context, making 'night' redundant.
Imagine someone actively holding onto the clock hands, making them stay on the later numbers (like 11 PM, 12 AM, 1 AM). They are 'keeping' those 'late hours' active. It emphasizes the active choice or necessity to be awake during those times.
Yes, you could say someone is a 'night owl,' 'stays up late often,' or 'is nocturnal.' For specific work contexts, 'works the night shift' or 'works overnight' are also options, though 'keep late hours' is more general.
It reflects a modern lifestyle where work, entertainment, and social activities often extend well into the night, especially in urban environments. It signifies a departure from traditional agrarian schedules tied strictly to daylight.
Definitely! People often use it in captions or comments. For example: 'Finally finished editing this vlog at 3 AM! #keepinglatehours' or 'My feed is full of people who keep late hours.'
There isn't a direct, single formal equivalent that's as common. In formal settings, you might rephrase it depending on the context, such as 'works extended hours,' 'maintains operations during night time,' or 'has a schedule requiring late-night activity.'
This implies that staying up late was a necessity, not a preference. It suggests external pressure, like a demanding work project, a critical deadline, or an emergency, forced them to adopt a late schedule temporarily.
While related, 'keep late hours' primarily refers to being awake and active late into the night. If someone sleeps late, we usually say they 'sleep in' or 'wake up late.' 'Keep late hours' focuses on the *wakefulness* part during the night.
It can be linked to productivity in different ways. Some people are naturally more productive late at night ('night owls'). Others might feel pressured to 'keep late hours' to get more done, potentially leading to burnout if not managed well.
Yes, the opposite concept is often described by phrases like 'keep early hours' or by referring to someone as an 'early bird.' An 'early bird' is someone who habitually wakes up and starts their day early.
No, it's best avoided for single events. If you stayed up late at a party, you'd simply say 'I stayed up late at the party.' The idiom 'keep late hours' strongly implies a recurring habit or routine, not a one-off celebration.
Technically, they are awake during late hours, but the more precise term is 'work the night shift' or 'work overnight.' 'Keep late hours' is broader and usually implies staying up late in the evening or into the early morning, not necessarily a full overnight work schedule.
Related Phrases
burn the midnight oil
related topicTo work or study late into the night.
Both phrases describe activities happening late at night, but 'burn the midnight oil' emphasizes the effort and specific task, while 'keep late hours' describes a general habit.
night owl
related topicA person who habitually stays up late at night.
This is a noun describing the person who typically 'keeps late hours,' making it a direct characterization of someone with that habit.
work the graveyard shift
related topicTo work during the night, typically from around midnight to morning.
This phrase is more specific than 'keep late hours' as it refers to a formal work schedule during overnight hours, not just a personal habit.
stay up late
synonymTo remain awake until a late hour.
This is a more literal and common way to express the idea, often used for single instances, whereas 'keep late hours' implies a habitual pattern.
early bird
antonymA person who wakes up and starts their day early.
This phrase describes the opposite behavior, referring to someone who prefers and maintains an early schedule rather than a late one.
work extended hours
formal versionTo work longer than the standard or scheduled time.
This is a more formal and professional way to describe working beyond normal times, often used in job descriptions or performance reviews, whereas 'keep late hours' is more casual.