Singapore zone
GMT+8 (GMT+8)
Washington D.C. zone
EDT (GMT-4)
Difference
12 hours behind Singapore
Business overlap
No 9-5 overlap
Working hours overlap
Each cell is one hour in Singapore. Filled cells mark when 9 AM – 5 PM in Singapore and Washington D.C. both apply.
0 hours per day
- Singapore
- GMT+8
- Washington D.C.
- GMT-4
- Difference
- -12h
- Business overlap
- 0h
Hour-by-hour conversion
Each row shows the matching local time in Washington D.C. for an hour in Singapore.
| Singapore | Washington D.C. | Day | Window |
|---|---|---|---|
| 12:00 AM | 12:00 PM | previous day | — |
| 1:00 AM | 1:00 PM | previous day | — |
| 2:00 AM | 2:00 PM | previous day | — |
| 3:00 AM | 3:00 PM | previous day | — |
| 4:00 AM | 4:00 PM | previous day | — |
| 5:00 AM | 5:00 PM | previous day | — |
| 6:00 AM | 6:00 PM | previous day | — |
| 7:00 AM | 7:00 PM | previous day | — |
| 8:00 AM | 8:00 PM | previous day | — |
| 9:00 AM | 9:00 PM | previous day | — |
| 10:00 AM | 10:00 PM | previous day | — |
| 11:00 AM | 11:00 PM | previous day | — |
| 12:00 PM | 12:00 AM | same day | — |
| 1:00 PM | 1:00 AM | same day | — |
| 2:00 PM | 2:00 AM | same day | — |
| 3:00 PM | 3:00 AM | same day | — |
| 4:00 PM | 4:00 AM | same day | — |
| 5:00 PM | 5:00 AM | same day | — |
| 6:00 PM | 6:00 AM | same day | — |
| 7:00 PM | 7:00 AM | same day | — |
| 8:00 PM | 8:00 AM | same day | — |
| 9:00 PM | 9:00 AM | same day | — |
| 10:00 PM | 10:00 AM | same day | — |
| 11:00 PM | 11:00 AM | same day | — |
Best meeting windows
Standard 9 AM – 5 PM hours in Singapore and Washington D.C. do not overlap. Plan calls for early Singapore morning or late Singapore evening, and rotate the burden between sides.
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 Singapore time to Washington D.C. time
Singapore follows the Asia/Singapore time zone (currently GMT+8, GMT+8), while Washington D.C. follows America/New_York (currently EDT, GMT-4). Washington D.C. is 12 hours behind Singapore right now.
Washington D.C. observes daylight saving time, while Singapore does not. The offset between the two cities changes by one hour at the daylight saving transitions.
Daylight saving transitions in 2026
Singapore
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 Singapore
Open the converter
Plan a meeting between Singapore and Washington D.C.
More conversions from Singapore
Frequently asked questions
- How many hours is Singapore from Washington D.C.?
- Washington D.C. is 12 hours behind Singapore right now.
- What time is 9:00 AM Singapore in Washington D.C.?
- 9:00 AM in Singapore is 9:00 PM (previous day) in Washington D.C..
- What time is 5:00 PM Singapore in Washington D.C.?
- 5:00 PM in Singapore is 5:00 AM in Washington D.C..
- When do Singapore and Washington D.C. business hours overlap?
- Standard 9 AM - 5 PM working hours in Singapore and Washington D.C. do not overlap. You will need an early or late call.
- Does daylight saving time change the difference between Singapore and Washington D.C.?
- Washington D.C. observes daylight saving time while Singapore does not, so the offset between them changes by one hour twice a year.
Local time page
Time in Singapore
Local time page
Time in Washington D.C.