Date & Time Tools

Timezones, UTC offsets, Unix timestamps, and date math: how computers and calendars count time, and where conversions silently go wrong.

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Date & Time Tools How to Calculate Time Zone Differences (Without Getting the Hour Wrong)

Calculate any time zone difference in two steps: convert local time to UTC, then add the target zone's offset...

Jul 19, 2026

Date & Time Tools Timezones, Unix Timestamps, and Date Math: How Computers Count Time

How timezones, UTC offsets, Unix timestamps, and date arithmetic really work — with worked examples that compu...

Jul 06, 2026