Johannesburg to SeaTac time converter

SeaTac is 9 hours behind Johannesburg. When it is 9:00 AM in Johannesburg, it is 12:00 AM in SeaTac.

Johannesburg SAST

Wednesday, October 21, 2026

SeaTac PDT

Wednesday, October 21, 2026

South Africa
Wed, Oct 21
SASTUTC+2
Washington, United States
Wed, Oct 21
PDTUTC-7-9h
Finding your time zone…

7:02 PM in Johannesburg, Wednesday, October 21, 2026

Shared working hours (9:00–18:00)

Johannesburg to SeaTac conversion table

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

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

Best time to call or meet

Working hours don't overlap fully. The closest fit is 4:00 PM – 6:00 PM in Johannesburg (7:00 AM – 9:00 AM in SeaTac): working hours on one side, early or late on the other.

Daylight saving time and the difference

The difference changes during the year because Johannesburg and SeaTac switch clocks on different dates:

  • Oct 21, 2026 – Nov 1, 2026: -9h
  • Nov 1, 2026 – Mar 14, 2027: -10h
  • Mar 14, 2027 – Oct 21, 2027: -9h

Distance

Johannesburg and SeaTac are 16,511 km (10,259 miles) apart in a straight line.

More conversions

Questions and answers

What is the time difference between Johannesburg and SeaTac?

SeaTac is 9 hours behind Johannesburg.

What time is it in SeaTac when it is 9 AM in Johannesburg?

When it is 9:00 AM in Johannesburg, it is 12:00 AM in SeaTac.

When is the best time to call SeaTac from Johannesburg?

Working hours don't overlap fully. The closest fit is 4:00 PM – 6:00 PM in Johannesburg (7:00 AM – 9:00 AM in SeaTac): working hours on one side, early or late on the other.

Does the time difference between Johannesburg and SeaTac change?

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