Sydney to Costa Rica time converter

Costa Rica is 18 hours behind Sydney. When it is 9:00 AM in Sydney, it is 3:00 PM (Wed, Oct 21) in Costa Rica.

Sydney AEDT

Thursday, October 22, 2026

Costa Rica MST

Wednesday, October 21, 2026

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

Sydney to Costa Rica conversion table

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

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

Best time to call or meet

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

Daylight saving time and the difference

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

  • Oct 22, 2026 – Apr 4, 2027: -18h
  • Apr 4, 2027 – Oct 3, 2027: -17h
  • Oct 3, 2027 – Oct 22, 2027: -18h

Distance

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

More conversions

Costa Rica to SydneySydney to New YorkSydney to LondonSydney to Los AngelesSydney to ChicagoSydney to TorontoSydney to São PauloSydney to ParisSydney to BerlinSydney to MoscowSydney to DubaiSydney to New DelhiSydney to Bangkok
New York to Costa RicaLondon to Costa RicaLos Angeles to Costa RicaChicago to Costa RicaToronto to Costa RicaSão Paulo to Costa RicaParis to Costa RicaBerlin to Costa RicaMoscow to Costa RicaDubai to Costa RicaNew Delhi to Costa RicaBangkok to Costa Rica

Questions and answers

What is the time difference between Sydney and Costa Rica?

Costa Rica is 18 hours behind Sydney.

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

When it is 9:00 AM in Sydney, it is 3:00 PM (Wed, Oct 21) in Costa Rica.

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

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

Does the time difference between Sydney and Costa Rica change?

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