JST to PDT Time Converter
Pacific Daylight Time (PDT) is currently 16 hours behind Japan Standard Time (JST). JST is UTC+9 and PDT is UTC-7. 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 PDT.
Comparing more than two places? The Overlap Zones tool shows working hours for several cities on one grid.
Hour by Hour: JST to PDT
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 PDT are fixed offsets, so the difference between them never changes.
JST is UTC+9. Japan has no daylight saving, so this offset never changes.
PDT is UTC-7, the summer counterpart of PST, used from March to November.
Frequently Asked Questions
How many hours behind is PDT compared to JST?
PDT is currently 16 hours behind JST. JST and PDT are fixed offsets, so the difference between them never changes.
What time is 9:00 AM in JST in PDT?
9:00 AM in JST is 5:00 PM in PDT on the previous day.
What is the best time for a call between JST and PDT?
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 PDT.