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DST Checker (US)

Check DST observance and transition dates for any timezone — spring forward dates decoded. Never miss a global meeting again — free, local, no signup.

100% Local Browser Native

How to Use the DST Checker (US)

1. Enter timezone

City or UTC offset.

2. Read DST rule

Observance plus transition dates.

3. Check meeting weeks

Reconfirm boundary weeks yearly.

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Frequently Asked Questions

When do clocks change?

US: second Sunday March forward, first Sunday November back. EU: last Sundays of March/October. Enter the zone for exact local dates.

Who skips DST?

Most of Asia, Africa (except parts), Arizona, Hawaii — plus Southern Hemisphere on flipped schedules. The checker names each zone's rule.

Meeting across DST boundaries?

Check both zones' transition weeks: a standing meeting shifts for one side only. Reconfirm March and October slots yearly.

Do timezone checks upload?

No — checks run locally in your browser. Nothing leaves your device.

When do US and EU clocks change in 2026?

US: March 8 to November 1. EU: March 29 to October 25. Enter any date and the tool reports whether DST applies and the UTC offset in force.

Last updated October 2026