Convert time between different time zones worldwide.
Select date, time, and zones to convert
Time zone conversion is essential for international business, remote collaboration, travel planning, and global communication. Our Time Zone Converter instantly converts time between major time zones worldwide, helping you coordinate across locations and avoid scheduling conflicts.
The world is divided into 24 time zones, each representing one hour of time difference. Time zones are primarily based on longitude, with each 15 degrees of longitude representing one hour. Greenwich Mean Time (GMT) at 0° longitude serves as the reference point.
Many countries observe Daylight Saving Time, shifting clocks forward one hour in spring and backward in fall. This changes UTC offsets seasonally:
Business: Scheduling meetings across global offices and time zones
Remote Work: Coordinating with team members in different countries
Travel: Understanding local time at destinations and managing jet lag
Finance: Trading on different stock markets with varying opening hours
Broadcasting: Scheduling live events for global audiences
Shipping: Tracking deliveries and coordinating logistics globally
When it's 12:00 (noon) GMT/UTC:
GMT (Greenwich Mean Time) and UTC (Coordinated Universal Time) are essentially the same for practical purposes, both at 0° longitude.
No, many countries don't observe DST including India, China, Japan, and several African nations.
Find the UTC offset for both zones, calculate the difference, and add/subtract from the original time.