time zone

noun

: a geographic region within which the same standard time is used

Illustration of time zone

• A Pacific time
• B mountain time
• C central time
• D eastern time

Examples of time zone in a Sentence

Recent Examples on the Web

Days earlier, a developer had discovered that Anthropic quietly slipped code into Claude Code that tried to work out whether the person using it was in China or connected to a Chinese AI lab, reading signals like their time zone and network address. — Harry Booth, Time, 7 July 2026

The first problem for the football-mad nation is the Round of 16 match isn’t taking place on Sunday night due to pesky time zones. — Ben Church, CNN Money, 5 July 2026

The Times Square ball dropped eight times from July 3 to 4, once across each time zone spanning the states and territories. — Karissa Waddick, USA Today, 4 July 2026

The next puzzle will be available at midnight in your time zone. — Will Jeanes, New York Times, 4 July 2026

Word History

First Known Use

1882, in the meaning defined above

Rhymes for time zone

• acetone
• anglophone
• baritone
• bourguignon
• buspirone
• chaperon
• chaperone
• cobblestone
• collarbone
• cornerstone
• cortisone
• dictaphone

Kids Definition

time zone

noun

: a geographic region within which the same standard time is used