Time in Markham vs Istanbul
Markham keeps EDT (UTC−4) and Istanbul keeps UTC+3 (UTC+3) today. Istanbul is 7 hours ahead of Markham; the rows below read both clocks live.
The working day, side by side
Hours shaded in both rows are inside working hours in both cities: 16:00–18:00 in Istanbul (09:00–11:00 your time).
| City | 00:00 in Markham | 01:00 in Markham | 02:00 in Markham | 03:00 in Markham | 04:00 in Markham | 05:00 in Markham | 06:00 in Markham | 07:00 in Markham | 08:00 in Markham | 09:00 in Markham | 10:00 in Markham | 11:00 in Markham | 12:00 in Markham | 13:00 in Markham | 14:00 in Markham | 15:00 in Markham | 16:00 in Markham | 17:00 in Markham | 18:00 in Markham | 19:00 in Markham | 20:00 in Markham | 21:00 in Markham | 22:00 in Markham | 23:00 in Markham |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Markham—— | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
| Istanbul—— | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
- Working hours
- Shoulder
- Night
- Overlap
Do more with Markham and Istanbul
Best hours to call
Where daylight saving pulls them apart
Markham next changes on Sunday 1 November 2026. Between those two dates the gap between the cities is an hour different from the one shown above — which is exactly when a recurring meeting drifts. Every date we track is on the daylight saving page.
Also useful
Common questions
How many hours ahead is Istanbul of Markham?
Istanbul is 7 hours ahead of Markham right now. The gap is not fixed: it moves whenever either side changes its clocks.
What is the best time to call between Markham and Istanbul?
Any hour in 09:00–11:00 Markham time is inside working hours in both cities.
Do Markham and Istanbul change clocks on the same date?
Only one of them does, so the gap between them changes twice a year even though neither city moved relative to the sun.