Online Alarm Clock

What Is a Time Zone Converter?

A time zone converter translates a specific time in one city or time zone into the equivalent time in another. It accounts for UTC offsets, daylight saving time (DST) changes, and half-hour/quarter-hour zones to give you accurate results.

How to Use the Time Zone Converter

1. Select the source city (“From”) and enter the time and date you want to convert.
2. Select the destination city (“To”).
3. The converted time appears instantly below with the full date and UTC offset information.
4. Use the swap button (↕) to quickly reverse the direction.
5. The Quick Reference table shows conversions at 3-hour intervals for easy scanning.

Features

• 43+ cities: Covers all major time zones across every continent.
• DST-aware: Automatically adjusts for daylight saving time transitions.
• Date tracking: Alerts you when the converted time falls on a different day.
• Quick reference table: See conversions at multiple times throughout the day at a glance.
• Copy result: One-click copy the conversion to share with others.
• Live clock: Current time in both zones is displayed for reference.

Common Use Cases

• Scheduling meetings: Find overlapping business hours between offices in different time zones.
• Travel: Figure out what time it will be at your destination when you arrive.
• Live events: Convert broadcast or stream times to your local time zone.
• International calls: Call friends, family, or clients at appropriate hours.

FAQ

Does it handle daylight saving time?

Yes. The converter uses your browser's IANA timezone database, which includes all historical and current DST rules for every supported city.

Why does a “Different day” badge appear?

When the time difference between two zones is large enough that the converted time falls on the previous or next calendar day, a warning badge is shown. This is common when converting between zones like Honolulu and Tokyo.