Convert SST to ChST — Time Difference Between Samoa Standard Time and Chamorro Standard Time

How to Convert SST to ChST

Drag the slider on the SST timeline to pick your time — the ChST time updates instantly. You can also click the time display to type a specific hour or pick one from the 15-minute interval dropdown, and use the date picker to check a different day.

What Is the Time Difference Between SST and ChST?

Chamorro Standard Time (ChST) is 21 hours ahead of Samoa Standard Time (SST). To convert, add 21 hours — for example, 9:00 AM SST is 6:00 AM (next day) ChST.

SST to ChST Quick Reference

SST to ChST Meeting Planner

Use the color-coded table above to find overlapping work hours between Midway and Hagåtña. Amber rows mark daytime hours — pick a slot that falls in amber on both sides for a meeting that works for everyone.

Why Trust This SST to ChST Converter?

Timezoney uses the IANA Time Zone Database — the same source that powers your phone and computer — so every conversion handles daylight saving transitions and half-hour offsets automatically.