In 15 Seconds
- Refers to specific chilly hours during the day or night.
- Used for early morning commutes or late night walks.
- Helps you warn friends to dress warmly for the weather.
Meaning
It refers to those specific parts of the day, like early morning or late night, when the air gets particularly chilly and you need to bundle up.
Key Examples
3 of 7Complaining about the morning commute
朝の寒い時間は、電車が辛いです。
The cold time in the morning makes the train difficult.
Waking up early
寒い時間は、まだ寝ていたい。
During the cold time, I want to keep sleeping.
A weather warning on the news
夜の寒い時間は、路面の凍結に注意してください。
Please be careful of frozen roads during the cold hours of the night.
Cultural Background
Japanese people are very sensitive to the 'first' of everything in a season. The first '{寒い|さむい}{時間|じかん}' of autumn is often a topic of news and conversation, marking a shift in the national mood. In business emails, it is common to start with a seasonal greeting. Mentioning the '{寒い|さむい}{時間|じかん}' or the cold weather is a polite way to show you care about the recipient's health. Because many traditional Japanese homes lack central heating, the '{寒い|さむい}{時間|じかん}' is a time for family to gather around the 'Kotatsu' (heated table). It's a symbol of domestic warmth against the outside cold. The concept of 'cold time' is a 'Kigo' (seasonal word) or related to it. It sets a mood of stillness and introspection.
The 'Air' Rule
Always use 'samui' for air temperature. If you feel it on your skin from the wind, it's 'samui.'
Avoid 'Na'
Don't say 'samui-na jikan.' It's a common mistake for students who just learned 'shizuka-na.'
In 15 Seconds
- Refers to specific chilly hours during the day or night.
- Used for early morning commutes or late night walks.
- Helps you warn friends to dress warmly for the weather.
What It Means
Imagine you are snuggled in bed. The sun isn't even up yet. You stick one toe out. It is freezing. That specific moment is a 寒い時間. It literally means "cold time." It refers to parts of the day when the temperature drops. It is not about the whole day. It is about those chilly windows of time. Usually, this means early morning or late at night. It is a very common way to describe daily discomfort. You might feel it while waiting for the train. You might feel it walking the dog. It is that "brrr" moment in your schedule.
How To Use It
Using this phrase is very simple. You just treat it like a noun. You can say 寒い時間は to start a sentence. Or use 寒い時間に to say "at" that time. For example, 寒い時間に散歩します means "I walk during the cold time." You can also use it to warn people. "Be careful during the cold hours!" It fits perfectly into daily conversations. You don't need complex grammar to make it work. Just drop it in when the air feels sharp. It's like a verbal cozy blanket for your thoughts.
When To Use It
This phrase is your best friend for small talk. Use it when complaining about your commute. It is great for talking about your heater settings. If you are meeting a friend at night, use it. "It will be a 寒い時間, so wear a coat!" It works well in winter, spring, or autumn. Any time the temperature fluctuates, this phrase is ready. It feels very natural and relatable to native speakers. You'll sound like you really understand the local climate. Plus, everyone loves a good weather complaint!
When NOT To Use It
Do not use this for cold objects. If your beer is cold, use tsumetai. If your ice cream is cold, use tsumetai. Samui is only for air temperature or atmosphere. Also, avoid using it for "cold" personalities. If someone is mean, this phrase won't work. Finally, don't confuse it with "winter." Winter is a season, but this is about the clock. Don't say it if the whole day is freezing. In that case, just say it's a 寒い日 (cold day).
Cultural Background
Japan is a country that obsesses over the seasons. People love discussing the "first cold" of the year. There is a deep appreciation for the changing air. In Japanese culture, being prepared for the weather is polite. Warning someone about the 寒い時間 shows you care. It is a small way to build social bonds. Even the news uses similar terms to help people stay healthy. It is part of the "seasonal awareness" that defines Japanese life. It's almost a national hobby to track the temperature!
Common Variations
You might hear 寒い時期 (samui jiki). This means a "cold period" or "cold season." It covers a longer stretch of time. Another one is 冷え込む時間 (hiekomu jikan). This sounds a bit more dramatic. It implies the temperature is "sinking" or "chilling down." If you want to sound cute, you might just say さむーい！. But 寒い時間 remains the most standard, useful version. It's the "Goldilocks" of phrases—not too formal, not too casual.
Usage Notes
This is a neutral phrase. It works with friends or at work. Just remember it's for air temperature, not objects.
The 'Air' Rule
Always use 'samui' for air temperature. If you feel it on your skin from the wind, it's 'samui.'
Avoid 'Na'
Don't say 'samui-na jikan.' It's a common mistake for students who just learned 'shizuka-na.'
Use with 'Jikantai'
If you want to sound like a native weather reporter, use 'samui jikantai.'
Health First
Mentioning the cold hours is often a way to show concern for someone's health, not just a weather report.
Examples
7朝の寒い時間は、電車が辛いです。
The cold time in the morning makes the train difficult.
A very common way to start a conversation with a coworker.
寒い時間は、まだ寝ていたい。
During the cold time, I want to keep sleeping.
Relatable sentiment for anyone who hates winter mornings.
夜の寒い時間は、路面の凍結に注意してください。
Please be careful of frozen roads during the cold hours of the night.
Uses the phrase to define a specific safety window.
夜は寒い時間だから、厚着してきてね！
It'll be a cold time tonight, so dress warmly!
Shows care and consideration for a friend.
こんな寒い時間にアイスを食べるの？
You're eating ice cream at such a cold time?
Highlights the irony of eating cold food when the air is cold.
寒い時間は、誰かに会いたくなります。
During the cold times, I feel like meeting someone.
Connects the physical cold to emotional warmth.
最近は寒い時間が増えましたね。
The cold hours have increased lately, haven't they?
A safe, professional way to open a conversation.
Test Yourself
Fill in the blank with the correct adjective form.
{朝|あさ}は（ ）{時間|じかん}ですから、コートを{着|き}てください。
We need the dictionary form of the i-adjective to modify the noun '{時間|じかん}.'
Which sentence is the most natural way to say 'I like the cold hours'?
Choose the best option:
'Samui' is for air, 'Jikan' is for time, and no 'na' is needed.
Complete the dialogue.
A: {一番|いちばん}{寒|さむ}い{時間|じかん}はいつですか？ B: （ ）ごろですよ。
The 'coldest time' usually refers to early morning.
Match the phrase to the situation.
When would you say '{寒い|さむい}{時間|じかん}を{避|さ}けましょう'?
'Sakeru' means to avoid; you avoid the cold time for comfort.
🎉 Score: /4
Visual Learning Aids
Samui vs. Tsumetai
Practice Bank
4 exercises{朝|あさ}は（ ）{時間|じかん}ですから、コートを{着|き}てください。
We need the dictionary form of the i-adjective to modify the noun '{時間|じかん}.'
Choose the best option:
'Samui' is for air, 'Jikan' is for time, and no 'na' is needed.
A: {一番|いちばん}{寒|さむ}い{時間|じかん}はいつですか？ B: （ ）ごろですよ。
The 'coldest time' usually refers to early morning.
When would you say '{寒い|さむい}{時間|じかん}を{避|さ}けましょう'?
'Sakeru' means to avoid; you avoid the cold time for comfort.
🎉 Score: /4
Frequently Asked Questions
12 questionsNo, for summer use '{暑|あつ}い{時間|じかん}' (hot time) or '{涼|すず}しい{時間|じかん}' (cool time).
It is 'Samui Jikan.' You don't need 'no' between an i-adjective and a noun.
The opposite is '{暖|あたた}かい{時間|じかん}' (warm time).
It is neutral. It's fine for both casual and polite speech.
Yes, but 'Toki' means 'when,' while 'Jikan' refers to the duration or specific time on a clock.
Use '{一番|いちばん}{寒|さむ}い{時間|じかん}' (Ichiban samui jikan).
Yes, very often in 'slice of life' anime when characters are commuting or camping.
Yes, if the air inside the room is cold, you can use it.
No, that would be '{冷|つめ}たい{人|ひと}.'
Usually 'ni' (at/during) or 'wa' (as for).
Yes, often in winter ballads to describe loneliness or waiting.
Yes, it means 'There are cold times.'
Related Phrases
{涼|すず}しい{時間|じかん}
similarCool/pleasant time
{冷|ひ}え{込|こ}む
builds onTo get chilled/drop in temperature
{時間帯|じかんたい}
specialized formTime slot/period
{朝晩|あさばん}
synonymMorning and evening
{真冬|まふゆ}
contrastDead of winter
