There is no overlap between 09:00–18:00 working days in these two places.
How many hours is PST behind WAT?
As abbreviations, WAT is always 9 hours ahead of PST: PST is UTC−8 and WAT is UTC+1. To convert, add 9 hours.
When the PST to WAT time difference changes
For most of the year WAT is 8 hours ahead of PST. From 1 November to 31 December 2026, WAT is 9 hours ahead of PST instead, because the two places change their clocks on different dates. Meetings booked by the usual gap land an hour off in those weeks.
Dates
WAT vs PST
Length
1 November 2026 to 31 December 2026
9 hours ahead
61 days
1 January 2027 to 13 March 2027
9 hours ahead
72 days
14 March 2027 to 6 November 2027
8 hours ahead
238 days
7 November 2027 to 31 December 2027
9 hours ahead
55 days
When PST and WAT are both at work
When WAT is 8 hours ahead of PST: no shared 09:00 to 17:00 hours; try 09:00 in PST (17:00 in WAT).
When WAT is 9 hours ahead of PST: no shared 09:00 to 17:00 hours; try 08:00 in PST (17:00 in WAT).
Frequently asked questions about PST and WAT time
How many hours ahead is WAT of PST?
WAT (UTC+1) is 9 hours ahead of PST (UTC−8).
Does the time difference between PST and WAT change?
Yes. It is usually 8 hours ahead, but changes when one side moves its clocks: 9 hours ahead from 1 November to 31 December 2026; 9 hours ahead from 1 January to 13 March 2027.