Istanbul zone
GMT+3 (GMT+3)
Washington D.C. zone
EDT (GMT-4)
Difference
7 hours behind Istanbul
Business overlap
1h (9-5 windows)
Working hours overlap
Each cell is one hour in Istanbul. Filled cells mark when 9 AM – 5 PM in Istanbul and Washington D.C. both apply.
1 hour per day
- Istanbul
- GMT+3
- Washington D.C.
- GMT-4
- Difference
- -7h
- Business overlap
- 1h
Hour-by-hour conversion
Each row shows the matching local time in Washington D.C. for an hour in Istanbul.
| Istanbul | Washington D.C. | Day | Window |
|---|---|---|---|
| 12:00 AM | 5:00 PM | previous day | — |
| 1:00 AM | 6:00 PM | previous day | — |
| 2:00 AM | 7:00 PM | previous day | — |
| 3:00 AM | 8:00 PM | previous day | — |
| 4:00 AM | 9:00 PM | previous day | — |
| 5:00 AM | 10:00 PM | previous day | — |
| 6:00 AM | 11:00 PM | previous day | — |
| 7:00 AM | 12:00 AM | same day | — |
| 8:00 AM | 1:00 AM | same day | — |
| 9:00 AM | 2:00 AM | same day | — |
| 10:00 AM | 3:00 AM | same day | — |
| 11:00 AM | 4:00 AM | same day | — |
| 12:00 PM | 5:00 AM | same day | — |
| 1:00 PM | 6:00 AM | same day | — |
| 2:00 PM | 7:00 AM | same day | — |
| 3:00 PM | 8:00 AM | same day | — |
| 4:00 PM | 9:00 AM | same day | Both 9-5 |
| 5:00 PM | 10:00 AM | same day | — |
| 6:00 PM | 11:00 AM | same day | — |
| 7:00 PM | 12:00 PM | same day | — |
| 8:00 PM | 1:00 PM | same day | — |
| 9:00 PM | 2:00 PM | same day | — |
| 10:00 PM | 3:00 PM | same day | — |
| 11:00 PM | 4:00 PM | same day | — |
Best meeting windows
If both teams keep standard 9 AM – 5 PM hours, the overlap window is roughly 4:00 PM – 5:00 PM in Istanbul time. That gives you 1 hour 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 Washington D.C. time
Istanbul follows the Europe/Istanbul time zone (currently GMT+3, GMT+3), while Washington D.C. follows America/New_York (currently EDT, GMT-4). Washington D.C. is 7 hours behind Istanbul right now.
Washington D.C. observes daylight saving time, while Istanbul does not. The offset between the two cities changes by one hour at the daylight saving transitions.
Daylight saving transitions in 2026
Istanbul
Does not observe daylight saving time.
Washington D.C.
- Spring forward · Sunday, March 8, 2026
- Fall back · Sunday, November 1, 2026
Reverse this conversion
Washington D.C. to Istanbul
Open the converter
Plan a meeting between Istanbul and Washington D.C.
More conversions from Istanbul
Frequently asked questions
- How many hours is Istanbul from Washington D.C.?
- Washington D.C. is 7 hours behind Istanbul right now.
- What time is 9:00 AM Istanbul in Washington D.C.?
- 9:00 AM in Istanbul is 2:00 AM in Washington D.C..
- What time is 5:00 PM Istanbul in Washington D.C.?
- 5:00 PM in Istanbul is 10:00 AM in Washington D.C..
- When do Istanbul and Washington D.C. business hours overlap?
- Standard 9 AM - 5 PM working hours overlap for about 1 hour, roughly from 4:00 PM to 5:00 PM in Istanbul time.
- Does daylight saving time change the difference between Istanbul and Washington D.C.?
- Washington D.C. observes daylight saving time while Istanbul does not, so the offset between them changes by one hour twice a year.
Local time page
Time in Istanbul
Local time page
Time in Washington D.C.