Time Difference
noun
The time distinction is how you tell apart time zones. It is the time difference.
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
まだ時差ボケに苦しんでいるんです。
I’m still suffering from jet lag.
日本との時差を聞いて、気が遠くなりました。
I was overwhelmed when I heard the time difference with Japan.
東京とポートランドの時差はどのぐらいありますか？
What is the time difference between Tokyo and Portland?