Time Difference Between Ko Samui and Sydney

Sydney is 3 hours ahead Ko Samui.

Thailand

Ko Samui

Asia/Bangkok · UTC+7

Australia

Sydney

Australia/Sydney · UTC+10

Best Times to Meet

Hours where standard working time (9 AM – 6 PM) overlaps in both Ko Samui and Sydney.

  • Ko Samui

    9:00 AM

    Sydney

    12:00 PM

  • Ko Samui

    10:00 AM

    Sydney

    1:00 PM

  • Ko Samui

    11:00 AM

    Sydney

    2:00 PM

  • Ko Samui

    12:00 PM

    Sydney

    3:00 PM

  • Ko Samui

    1:00 PM

    Sydney

    4:00 PM

  • Ko Samui

    2:00 PM

    Sydney

    5:00 PM

Ko Samui to Sydney — 24-Hour Conversion

Each row shows the equivalent local time in Sydney for an hour in Ko Samui. Working-hours rows (9–18) are highlighted.

Ko SamuiSydneyMatch
Off hours
Off hours
Off hours
Off hours
Off hours
Off hours
Workday in Sydney
Workday in Sydney
Workday in Sydney
Best for meetings
Best for meetings
Best for meetings
Best for meetings
Best for meetings
Best for meetings
Workday in Ko Samui
Workday in Ko Samui
Workday in Ko Samui
Off hours
Off hours
Off hours
+1 dayOff hours
+1 dayOff hours
+1 dayOff hours

Frequently Asked Questions

What is the time difference between Ko Samui and Sydney?

Sydney, Australia (UTC+10) is 3 hours ahead Ko Samui, Thailand (UTC+7).

What is the best time to schedule a meeting between Ko Samui and Sydney?

The best meeting times overlap when both cities are within standard working hours (9 AM – 6 PM). The full hour-by-hour table on this page lists every overlap window.

Does daylight saving time change the difference between Ko Samui and Sydney?

Yes — when one city observes daylight saving time and the other does not, the gap shifts by an hour. The conversion table on this page reflects the current offset, including any active DST.

When it is 9 AM in Ko Samui, what time is it in Sydney?

Use the conversion table on this page — every hour in Ko Samui is mapped to its equivalent local time in Sydney, including day shift markers when the date differs.