Istanbul zone
GMT+3 (GMT+3)
UTC zone
UTC (GMT-0)
Difference
3 hours behind Istanbul
Business overlap
5h (9-5 windows)
Working hours overlap
Each cell is one hour in Istanbul. Filled cells mark when 9 AM – 5 PM in Istanbul and UTC both apply.
5 hours per day
- Istanbul
- GMT+3
- UTC
- GMT-0
- Difference
- -3h
- Business overlap
- 5h
Hour-by-hour conversion
Each row shows the matching local time in UTC for an hour in Istanbul.
| Istanbul | UTC | Day | Window |
|---|---|---|---|
| 12:00 AM | 9:00 PM | previous day | — |
| 1:00 AM | 10:00 PM | previous day | — |
| 2:00 AM | 11:00 PM | previous day | — |
| 3:00 AM | 12:00 AM | same day | — |
| 4:00 AM | 1:00 AM | same day | — |
| 5:00 AM | 2:00 AM | same day | — |
| 6:00 AM | 3:00 AM | same day | — |
| 7:00 AM | 4:00 AM | same day | — |
| 8:00 AM | 5:00 AM | same day | — |
| 9:00 AM | 6:00 AM | same day | — |
| 10:00 AM | 7:00 AM | same day | — |
| 11:00 AM | 8:00 AM | same day | — |
| 12:00 PM | 9:00 AM | same day | Both 9-5 |
| 1:00 PM | 10:00 AM | same day | Both 9-5 |
| 2:00 PM | 11:00 AM | same day | Both 9-5 |
| 3:00 PM | 12:00 PM | same day | Both 9-5 |
| 4:00 PM | 1:00 PM | same day | Both 9-5 |
| 5:00 PM | 2:00 PM | same day | — |
| 6:00 PM | 3:00 PM | same day | — |
| 7:00 PM | 4:00 PM | same day | — |
| 8:00 PM | 5:00 PM | same day | — |
| 9:00 PM | 6:00 PM | same day | — |
| 10:00 PM | 7:00 PM | same day | — |
| 11:00 PM | 8:00 PM | same day | — |
Best meeting windows
If both teams keep standard 9 AM – 5 PM hours, the overlap window is roughly 12:00 PM – 5:00 PM in Istanbul time. That gives you 5 hours per workday for live meetings.
Tighter overlap is achievable by having the side with later working hours start earlier, or by treating the first and last hours of each side as flexible. The bar above marks every hour where both cities sit inside a 9 AM – 5 PM window.
About converting Istanbul time to UTC time
Istanbul follows the Europe/Istanbul time zone (currently GMT+3, GMT+3), while UTC follows UTC (currently UTC, GMT-0). UTC is 3 hours behind Istanbul right now.
Neither city observes daylight saving time, so the offset between them is the same all year.
Reverse this conversion
UTC to Istanbul
Open the converter
Plan a meeting between Istanbul and UTC
More conversions from Istanbul
Frequently asked questions
- How many hours is Istanbul from UTC?
- UTC is 3 hours behind Istanbul right now.
- What time is 9:00 AM Istanbul in UTC?
- 9:00 AM in Istanbul is 6:00 AM in UTC.
- What time is 5:00 PM Istanbul in UTC?
- 5:00 PM in Istanbul is 2:00 PM in UTC.
- When do Istanbul and UTC business hours overlap?
- Standard 9 AM - 5 PM working hours overlap for about 5 hours, roughly from 12:00 PM to 5:00 PM in Istanbul time.
- Does daylight saving time change the difference between Istanbul and UTC?
- Neither Istanbul nor UTC observes daylight saving time, so the offset between them is constant year-round.
Local time page
Time in Istanbul
Local time page
Time in UTC