Istanbul zone
GMT+3 (GMT+3)
Singapore zone
GMT+8 (GMT+8)
Difference
5 hours ahead of Istanbul
Business overlap
3h (9-5 windows)
Working hours overlap
Each cell is one hour in Istanbul. Filled cells mark when 9 AM – 5 PM in Istanbul and Singapore both apply.
3 hours per day
- Istanbul
- GMT+3
- Singapore
- GMT+8
- Difference
- +5h
- Business overlap
- 3h
Hour-by-hour conversion
Each row shows the matching local time in Singapore for an hour in Istanbul.
| Istanbul | Singapore | Day | Window |
|---|---|---|---|
| 12:00 AM | 5:00 AM | same day | — |
| 1:00 AM | 6:00 AM | same day | — |
| 2:00 AM | 7:00 AM | same day | — |
| 3:00 AM | 8:00 AM | same day | — |
| 4:00 AM | 9:00 AM | same day | — |
| 5:00 AM | 10:00 AM | same day | — |
| 6:00 AM | 11:00 AM | same day | — |
| 7:00 AM | 12:00 PM | same day | — |
| 8:00 AM | 1:00 PM | same day | — |
| 9:00 AM | 2:00 PM | same day | Both 9-5 |
| 10:00 AM | 3:00 PM | same day | Both 9-5 |
| 11:00 AM | 4:00 PM | same day | Both 9-5 |
| 12:00 PM | 5:00 PM | same day | — |
| 1:00 PM | 6:00 PM | same day | — |
| 2:00 PM | 7:00 PM | same day | — |
| 3:00 PM | 8:00 PM | same day | — |
| 4:00 PM | 9:00 PM | same day | — |
| 5:00 PM | 10:00 PM | same day | — |
| 6:00 PM | 11:00 PM | same day | — |
| 7:00 PM | 12:00 AM | next day | — |
| 8:00 PM | 1:00 AM | next day | — |
| 9:00 PM | 2:00 AM | next day | — |
| 10:00 PM | 3:00 AM | next day | — |
| 11:00 PM | 4:00 AM | next day | — |
Best meeting windows
If both teams keep standard 9 AM – 5 PM hours, the overlap window is roughly 9:00 AM – 12:00 PM in Istanbul time. That gives you 3 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 Singapore time
Istanbul follows the Europe/Istanbul time zone (currently GMT+3, GMT+3), while Singapore follows Asia/Singapore (currently GMT+8, GMT+8). Singapore is 5 hours ahead of Istanbul right now.
Neither city observes daylight saving time, so the offset between them is the same all year.
Reverse this conversion
Singapore to Istanbul
Open the converter
Plan a meeting between Istanbul and Singapore
More conversions from Istanbul
Frequently asked questions
- How many hours is Istanbul from Singapore?
- Singapore is 5 hours ahead of Istanbul right now.
- What time is 9:00 AM Istanbul in Singapore?
- 9:00 AM in Istanbul is 2:00 PM in Singapore.
- What time is 5:00 PM Istanbul in Singapore?
- 5:00 PM in Istanbul is 10:00 PM in Singapore.
- When do Istanbul and Singapore business hours overlap?
- Standard 9 AM - 5 PM working hours overlap for about 3 hours, roughly from 9:00 AM to 12:00 PM in Istanbul time.
- Does daylight saving time change the difference between Istanbul and Singapore?
- Neither Istanbul nor Singapore observes daylight saving time, so the offset between them is constant year-round.
Local time page
Time in Istanbul
Local time page
Time in Singapore