1.
time slot, time period, hours
A range or block of time within a day, such as morning hours, rush hour, or a specific broadcast slot.
この時間帯は道が混む。
The roads are congested during this time of day.
深夜の時間帯は電気代が安くなる。
Electricity costs are lower during late-night hours.
ゴールデンタイムの時間帯に放送される番組は視聴率が高い。
Programs broadcast during the prime-time slot have high ratings.
2.
time zone
A geographical region that observes a uniform standard time, such as Japan Standard Time or Eastern Time.
日本とアメリカは時間帯が違う。
Japan and America are in different time zones.
会議の時間は両方の時間帯に合わせて調整した。
The meeting time was adjusted to accommodate both time zones.
海外との取引では時間帯の差を考慮する必要がある。
When doing business internationally, you need to take time zone differences into account.
USAGE:
Sense 1 (time slot) is the more common usage in daily Japanese. Refers to a block of hours within a day, such as 朝の時間帯 (morning hours), ラッシュの時間帯 (rush hour), or ゴールデンタイムの時間帯 (prime-time slot).
Sense 2 (time zone) is used in international contexts. Japan is in a single time zone (JST, UTC+9) and does not observe daylight saving time.
COMMON COLLOCATIONS:
- ラッシュの時間帯: rush hour
- 深夜の時間帯: late-night hours
- 時間帯が違う: to be in a different time zone
- 時間帯を選ぶ: to choose a time slot