EST to GST time converter
Enter a time in EST to get the matching time in GST, whether it falls on the next or previous day, and a full 24-hour table. Handy for planning calls between New York and Toronto and Dubai and Muscat.
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Processing and privacy: The result is calculated inside your browser and your data is not sent to any server.
How to use it
- Enter time in est and day in est (optional).
- The result appears straight away and updates as you edit.
- Copy the result, or copy a link that keeps the same values to share it.
How it is calculated
GST time = EST time + 9 hours, because GST is UTC+4 and EST is UTC-5. If the result reaches 24:00 or more, subtract 24 hours and move to the next day; if it drops below 00:00, add 24 hours and move to the previous day.
Example
Inputs: Time in EST = 22:00, Day in EST (optional) = Thursday. Result: Time in GST: 07:00; Day change: Next day (+1); Offset difference (GST minus EST): 9 hours.
Limits and caveats
- Fixed offsets are used: EST = UTC-5 and GST = UTC+4, whatever the date.
- New York switches to EDT (UTC-4) from the second Sunday of March to the first Sunday of November; the tool does not apply that change.
- GST here is Gulf Standard Time (UTC+4) of the UAE and Oman.
Questions about this tool
What time is 09:00 EST in GST?
09:00 EST is 18:00 GST on the same day, because GST is 9 hours ahead of EST.
Does daylight saving time change the result?
The tool keeps EST at UTC-5 all year. New York switches to EDT (UTC-4) from the second Sunday of March to the first Sunday of November; in that period the gap between New York and GST is 8 hours.
Which GST does this tool use?
Here GST means Gulf Standard Time, UTC+4, used in the UAE and Oman. The same letters also stand for South Georgia Time (UTC-2), which is rarely meant.