Is PST the same as PDT?
No. PST and PDT use different UTC offsets and apply in different seasons.
PST vs PDT
PST and PDT are both Pacific Time labels, but they apply in different parts of the year.
Direct answer
PST and PDT are both Pacific Time labels, but they apply in different parts of the year.
Common US presets: ET, CT, MT, and PT. Use exact IANA zones for precise conversion around DST changes.
US preset shortcuts
US examples
- PST is typically UTC-08:00 in standard time months.
- PDT is typically UTC-07:00 during daylight saving months.
- Use America/Los_Angeles for date-accurate conversion.
Popular US links
US section hubs
Frequently asked questions
Which should I use in scheduling?
Use an IANA zone like America/Los_Angeles to avoid manual DST mistakes.
Does every US Pacific location observe DST?
Most do, but some nearby regions use different seasonal rules.