Time Zone Converter
Instantly convert time between cities worldwide. Perfect for scheduling calls, meetings, and travel planning.
About Time Zones
🌍 How Time Zones Work
The world is divided into 24 time zones, each roughly 15 degrees of longitude apart. Coordinated Universal Time (UTC) serves as the global reference point.
When you travel east, you add hours. When you travel west, you subtract hours. The International Date Line in the Pacific marks where the calendar date changes.
🇺🇸 US Time Zones
The continental US spans four time zones: Eastern (ET), Central (CT), Mountain (MT), and Pacific (PT). Alaska and Hawaii have their own zones.
Most states observe Daylight Saving Time (DST) from March to November, moving clocks forward one hour. Arizona and Hawaii do not observe DST.
💡 Scheduling Tips
- For US-Europe calls, aim for 8-10 AM ET (1-3 PM London)
- US-Asia meetings work best around 7-9 PM ET (next day morning in Asia)
- Always confirm if DST is in effect — it can shift times by an hour
- Use “UTC” as a neutral reference when coordinating globally
- Double-check the date — crossing the Date Line changes the day
⚠️ Watch Out For
Daylight Saving Time doesn’t happen everywhere or at the same time. The US and Europe switch on different dates, creating a few weeks of extra confusion each spring and fall.
Some regions like India (UTC+5:30) and Nepal (UTC+5:45) use half-hour or 45-minute offsets. Always double-check unusual time zones.