GMT / PST / PDT Time Zone Reference

Current Time

Greenwich Mean Time (Zulu / UTC)
Winter (Nov–Mar)
AM / PM

We are currently observing --.

24-Hour Timeline

AQPI forecasts are timestamped in GMT (UTC+0). Use this chart to convert to local Pacific time: PST (GMT−8) is observed November–March; PDT (GMT−7) is observed March–November. The current GMT hour is highlighted with a red box and is centered in the chart. The PST and PDT times are aligned below the GMT.

GMT = Greenwich Mean Time (aka Zulu time)
PST = Pacific Standard Time. (Winter: November - March)
PDT = Pacific Daylight Savings Time. (Summer: March - November)

GMT, PST, and PDT hours for the current 24-hour period. The red outlined cells are the current hour.
Time Zone Offsets from GMT
Zone Full Name UTC Offset Season Current GMT hour…
GMT Greenwich Mean Time UTC+0 Year-round (data timestamps) --:-- GMT
PST Pacific Standard Time UTC−8 November – March --:-- PST
PDT Pacific Daylight Time UTC−7 March – November --:-- PDT

Modified: 2026-02-18