Time Zone Converter for US, UK, India and International Time
Use this free time zone converter online to compare a selected date and time across major locations around the world. It is useful when you need to convert IST to EST, IST to PST, IST to GMT, India time to UK time, or US and European times for meetings, travel, remote work and international calls.
The converter uses named IANA time zones instead of treating every location as a fixed UTC offset. This is important because daylight saving time can change local clock times in places such as New York, Los Angeles, London, Paris and Sydney. Select the date as well as the time so the result reflects the applicable rules for that date.
Common Time Zone Conversions
For an IST to EST converter, choose New Delhi, Mumbai (IST) as the base zone and read the New York result. For an IST to PST conversion, compare the same base time with Los Angeles. You can also use the tool for EST to IST, PST to IST, GMT to IST, London to India time and other international time conversions by changing the base zone.
US Eastern, Central and Pacific time are shown separately because New York, Chicago and Los Angeles can have different local times. UK and European locations are also listed separately so you can compare London time with India time without manually calculating the offset.
UTC, GMT, IST, EST and PST Explained
UTC is the global reference time standard used to coordinate clocks. IST is India Standard Time (UTC+5:30). EST is Eastern Standard Time, while the broader US Eastern Time zone can switch between standard and daylight time depending on the date. Similarly, PST is Pacific Standard Time, while US Pacific Time can use daylight time during part of the year.
How to Use the Time Zone Converter
- Choose the location whose local date and time you already know.
- Enter the date and time for that location.
- Review the converted local times for the US, UK, India, Europe, Japan and Australia.
- Check both the clock time and calendar date because a conversion can move into the previous or next day.
Time Zone Converter for Meetings and Travel
International teams can use this tool to check a meeting time before sending an invitation. Travelers can compare departure and destination times, while remote workers can check US, UK and India working hours. Always confirm the final appointment time with your calendar or booking service, especially around daylight saving transitions.
Daylight Saving Time and Time Zone Accuracy
Some regions change their clocks seasonally. The converter uses IANA identifiers such as America/New_York, America/Los_Angeles, Europe/London and Australia/Sydney so the selected date can be evaluated with the relevant local offset. A time conversion should therefore include a date rather than relying only on a fixed number of hours.