Timetate
A world clock on a live 3D globe. Put Istanbul and Lisbon on it side by side.
🇹🇷 Istanbul (UTC+3) · 🇵🇹 Lisbon (UTC+1) · 2 hours difference — Istanbul is ahead
Best Time to Meet
🇹🇷 11:00–17:00 in Istanbul = 🇵🇹 09:00–15:00 in Lisbon6 hours of overlap within standard business hours (09:00–17:00)
24-Hour Schedule
| City | 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 | 03:00 | 04:00 | 05:00 | 06:00 | 07:00 | 08:00 | 09:00 | 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | 20:00 | 21:00 | 22:00 | 23:00 | 00:00 | 01:00 | 02:00 |
| 🇵🇹 Lisbon | 01:00 | 02:00 | 03:00 | 04:00 | 05:00 | 06:00 | 07:00 | 08:00 | 09:00 | 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | 20:00 | 21:00 | 22:00 | 23:00 | 00:00 |
Quick Reference
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Open Meeting Planner →Both cities run on banking, so most calls between Istanbul and Lisbon are between people in the same trade. The gap is 2 hours, with Istanbul the one whose clock reads later.
Both cities work Monday to Friday, Istanbul typically 09:00–18:00 and Lisbon 09:00–18:00 local time. On the Istanbul side the dates that break a schedule are Ramadan Feast (end of Ramadan, three days) and Sacrifice Feast (four days, roughly 70 days later); on the Lisbon side, Freedom Day (25 April) and Portugal Day (10 June). Replies slow in Istanbul during the Sacrifice Feast week and in Lisbon during August.
The comfortable window is 11:00–17:00 Istanbul time, which is 09:00–15:00 in Lisbon — 6 shared office hours, enough that nobody has to stretch. Only Lisbon changes its clocks, so the gap shifts by an hour twice a year while Istanbul stays put.
Istanbul is 2 hours ahead of Lisbon. The gap changes by an hour around the clock changes.
11:00–17:00 Istanbul time, which is 09:00–15:00 in Lisbon — the 6-hour stretch when both are inside 09:00–17:00.
Only Lisbon does. The gap shifts by an hour twice a year while Istanbul stays on the same offset.
The ones that most often surprise the other side are Ramadan Feast (end of Ramadan, three days) and Sacrifice Feast (four days, roughly 70 days later) in Istanbul and Freedom Day (25 April) and Portugal Day (10 June) in Lisbon.
Explore city time zones
Times on this page were calculated on .