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World Clock & Time Zone Converter
If it's 14:00 in Moscow, what time is it in Dubai, New York, or Mumbai? Compare time across 40+ cities instantly.
Enter a time in your base timezone to see what it would be in other cities.
Perfect for WhatsApp & Telegram business
WhatsApp scheduling
Know the right time to send WhatsApp messages to clients in Dubai, New York, or São Paulo without waking them up.
Telegram coordination
Coordinate with Telegram groups across time zones. See when your team in Tokyo, Berlin, and Sydney is online.
Meeting planner
Find the overlap window when everyone is awake. Essential for international teams and remote work.
FAQ
How does the time zone converter work?
Select your base timezone and see the current time in 12 major cities instantly. You can also enter a specific time to see what it would be in other cities.
Does it account for daylight saving time?
Yes. The converter uses your browser's built-in Intl.DateTimeFormat which automatically handles DST transitions for each timezone.
Can I add more cities?
Yes. Click "Add a city" to add any of 40+ world cities to your comparison grid. You can also remove cities you don't need.
Is my data sent to any server?
No. Everything runs entirely in your browser using the JavaScript Intl API. No data is sent to any server.
Why is this useful for WhatsApp and Telegram?
If you send WhatsApp or Telegram messages to international contacts, knowing their local time helps you avoid messaging at 3 AM. This tool shows you the right time window for each city.
Why use a time zone converter?
Instant comparison
See time in 12+ cities at once. No manual calculations or timezone tables needed.
DST-aware
Automatically adjusts for daylight saving time. Always accurate, even during DST transitions.
Custom time lookup
Enter any time in your timezone and instantly see what it corresponds to in Dubai, New York, Mumbai, and more.
Business scheduling
Find the right time window for international WhatsApp and Telegram messaging. Never send a message at 3 AM again.