JST to PST Time Converter
Pacific Standard Time (PST) is currently 17 hours behind Japan Standard Time (JST). JST is UTC+9 and PST is UTC-8. The table below converts every hour of the day between the two, and the call planner shows where working hours line up.
Best Time for a Call
Both sides are inside 9:00 AM to 5:00 PM office hours between 9:00 AM and 5:00 PM in JST, which is 9:00 AM to 5:00 PM in PST.
Comparing more than two places? The Overlap Zones tool shows working hours for several cities on one grid.
Hour by Hour: JST to PST
Rows marked office hours fall between 9:00 AM and 5:00 PM in both places. For a specific date, use the interactive converter.
Does the Difference Change During the Year?
JST and PST are fixed offsets, so the difference between them never changes.
JST is UTC+9. Japan has no daylight saving, so this offset never changes.
PST is UTC-8, used on the North American west coast in winter. The region switches to PDT (UTC-7) from March to November.
Frequently Asked Questions
How many hours behind is PST compared to JST?
PST is currently 17 hours behind JST. JST and PST are fixed offsets, so the difference between them never changes.
What time is 9:00 AM in JST in PST?
9:00 AM in JST is 4:00 PM in PST on the previous day.
What is the best time for a call between JST and PST?
Both sides are inside 9:00 AM to 5:00 PM office hours between 9:00 AM and 5:00 PM in JST, which is 9:00 AM to 5:00 PM in PST.