Costa Rica to Sydney time converter

Sydney is 18 hours ahead of Costa Rica. When it is 9:00 AM in Costa Rica, it is 3:00 AM (Thu, Oct 22) in Sydney.

Costa Rica MST

Wednesday, October 21, 2026

Sydney AEDT

Thursday, October 22, 2026

Costa Rica
Sinaloa, Mexico
Wed, Oct 21
MSTUTC-7
Sydney
New South Wales, Australia
Thu, Oct 22
AEDTUTC+11+18h
Finding your time zone…
Shared working hours (9:00–18:00)

Costa Rica to Sydney conversion table

Every hour of today in Costa Rica and the matching time in Sydney. Light rows are typical working hours (9:00–18:00).

Costa RicaSydney
12:00 AM6:00 PM
1:00 AM7:00 PM
2:00 AM8:00 PM
3:00 AM9:00 PM
4:00 AM10:00 PM
5:00 AM11:00 PM
6:00 AM12:00 AM+1 day
7:00 AM1:00 AM+1 day
8:00 AM2:00 AM+1 day
9:00 AM3:00 AM+1 day
10:00 AM4:00 AM+1 day
11:00 AM5:00 AM+1 day
12:00 PM6:00 AM+1 day
1:00 PM7:00 AM+1 day
2:00 PM8:00 AM+1 day
3:00 PM9:00 AM+1 day
4:00 PM10:00 AM+1 day
5:00 PM11:00 AM+1 day
6:00 PM12:00 PM+1 day
7:00 PM1:00 PM+1 day
8:00 PM2:00 PM+1 day
9:00 PM3:00 PM+1 day
10:00 PM4:00 PM+1 day
11:00 PM5:00 PM+1 day

Best time to call or meet

Both sides are at work from 3:00 PM – 6:00 PM in Costa Rica (9:00 AM – 12:00 PM in Sydney).

Daylight saving time and the difference

The difference changes during the year because Costa Rica and Sydney switch clocks on different dates:

  • Oct 21, 2026 – Apr 3, 2027: +18h
  • Apr 3, 2027 – Oct 2, 2027: +17h
  • Oct 2, 2027 – Oct 21, 2027: +18h

Distance

Costa Rica and Sydney are 12,499 km (7,767 miles) apart in a straight line.

More conversions

Sydney to Costa RicaCosta Rica to New YorkCosta Rica to LondonCosta Rica to Los AngelesCosta Rica to ChicagoCosta Rica to TorontoCosta Rica to São PauloCosta Rica to ParisCosta Rica to BerlinCosta Rica to MoscowCosta Rica to DubaiCosta Rica to New DelhiCosta Rica to Bangkok
New York to SydneyLondon to SydneyLos Angeles to SydneyChicago to SydneyToronto to SydneySão Paulo to SydneyParis to SydneyBerlin to SydneyMoscow to SydneyDubai to SydneyNew Delhi to SydneyBangkok to Sydney

Questions and answers

What is the time difference between Costa Rica and Sydney?

Sydney is 18 hours ahead of Costa Rica.

What time is it in Sydney when it is 9 AM in Costa Rica?

When it is 9:00 AM in Costa Rica, it is 3:00 AM (Thu, Oct 22) in Sydney.

When is the best time to call Sydney from Costa Rica?

Both sides are at work from 3:00 PM – 6:00 PM in Costa Rica (9:00 AM – 12:00 PM in Sydney).

Does the time difference between Costa Rica and Sydney change?

Yes, for part of the year, because daylight saving time starts and ends on different dates or applies on one side only.