Time Difference: Singapore vs Washington

Washington is 12 hours behind Singapore.

Quick Reference

Singapore
SGT (GMT+8)

No Daylight Saving Time

Washington
EDT (GMT-4)

EST starts on Nov 1, 2026

Frequently Asked Questions

What is the time difference between Singapore and Washington?
Washington is 12 hours behind Singapore.
When is the best time to call from Singapore to Washington?
The best time to call is during overlapping business hours (9 AM – 5 PM) in both cities. Use the interactive converter on this page to visually compare hours side by side.
Does the time difference change with daylight saving time?
The time difference may change when either city enters or exits daylight saving time. Singapore uses SGT and Washington uses EDT.
Time Difference: Singapore vs Washington — 12 Hours | Timezone App