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
7:02 PM in Johannesburg, Wednesday, October 21, 2026
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).
| Johannesburg | SeaTac |
|---|---|
| 12:00 AM | 3:00 PM−1 day |
| 1:00 AM | 4:00 PM−1 day |
| 2:00 AM | 5:00 PM−1 day |
| 3:00 AM | 6:00 PM−1 day |
| 4:00 AM | 7:00 PM−1 day |
| 5:00 AM | 8:00 PM−1 day |
| 6:00 AM | 9:00 PM−1 day |
| 7:00 AM | 10:00 PM−1 day |
| 8:00 AM | 11:00 PM−1 day |
| 9:00 AM | 12:00 AM |
| 10:00 AM | 1:00 AM |
| 11:00 AM | 2:00 AM |
| 12:00 PM | 3:00 AM |
| 1:00 PM | 4:00 AM |
| 2:00 PM | 5:00 AM |
| 3:00 PM | 6:00 AM |
| 4:00 PM | 7:00 AM |
| 5:00 PM | 8:00 AM |
| 6:00 PM | 9:00 AM |
| 7:00 PM | 10:00 AM |
| 8:00 PM | 11:00 AM |
| 9:00 PM | 12:00 PM |
| 10:00 PM | 1:00 PM |
| 11:00 PM | 2:00 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.