GMT to TRT
Convert London Time — GMT/BST to Turkey Time — Istanbul — fast, accurate, and daylight-saving aware.
When it's 9:00 AM in London, it's 11:00 AM in Istanbul. Istanbul is 2 hours ahead of London. Use the converter above to turn any GMT time into TRT, or scan the hour-by-hour table below for the full day.
GMT to TRT at a glance
Planning a meeting between London and Istanbul
Planning a call between London and Istanbul? The best overlap during a standard 9-to-5 workday runs 9:00 AM–3:00 PM GMT (11:00 AM–5:00 PM TRT). Aim for that window to reach both sides during business hours.
Hour-by-hour: London to Istanbul
A full day mapped from GMT to TRT.
Frequently asked
Is Istanbul ahead of or behind London?
Istanbul is 2 hours ahead of London.
What is 12:00 PM GMT in TRT?
12:00 PM in London is 2:00 PM in Istanbul.
Does this converter account for daylight saving time?
Yes. Conversions use the IANA time zone database, so GMT and TRT automatically reflect the correct daylight-saving offset for the current date.