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