Time Difference
See how many hours one city is ahead of or behind another right now, with both local clocks shown side by side.
Choose a city pair to get the current gap first, plus date rollover and DST context for real scheduling.
World Clock
Time zone converter and meeting planner
Compare cities on one shared timeline, move a single cursor through the day, and keep the same view in your browser, account, and URL.
Reference time
18:38
Prague, Czechia / Sep 13
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Prague
Home18:38
Sun, Sep 13
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New York
12:38
Sun, Sep 13
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Shared timeline
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18:38
Prague
HomeUTC+2Czechia / GMT+2
18:38
Sun, Sep 13
Now: 18:38
Previous day
New York
UTC-4United States / EDT
12:38
Sun, Sep 13
Now: 12:38
Previous day