U to PDT Converter
Start by searching for a time zone, city, or town.
Add one or more places to compare local times, adjust the date, and share the result.
Quick answers
Selected conversion
4:00 am04:00 U (UTC-8), Oct 18, 2026 = 5:00 am05:00 PDT (UTC-7), Oct 18, 2026
U is 1 hour behind PDT.
U and PDT examples
These examples always use U (UTC-8) and PDT (UTC-7). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.
U is 1 hour behind PDT.
How the time difference changes
For most of the year, U is 1 hour behind PDT. From Nov 1, 2026 to Mar 14, 2027, U and PST have the same time.
For most of the year, working hours of 9:00 am to 6:00 pm in U correspond to 10:00 am to 7:00 pm in PDT. At other times of the year, working hours of 9:00 am to 6:00 pm in U correspond to 9:00 am to 6:00 pm in PST.For most of the year, working hours of 09:00 to 18:00 in U correspond to 10:00 to 19:00 in PDT. At other times of the year, working hours of 09:00 to 18:00 in U correspond to 09:00 to 18:00 in PST.
Compare U time with PDT time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Uniform Time Zone is 1 hour behind Pacific Daylight Time.
4:00 am04:00 in U is 5:00 am05:00 in PDT
U to PDT call time
Best time for a conference call or a meeting is between 9am-5pm09:00-17:00 in U which corresponds to 10am-6pm10:00-18:00 in PDT
4:00 am04:00 Uniform Time Zone (U). Offset UTC -8:00 hours
5:00 am05:00 Pacific Daylight Time (PDT). Offset UTC -7:00 hours
4:00 am04:00 U / 5:00 am05:00 PDT
Choose an hour to update the converter. Day labels such as “next day” or “+1” are relative to the selected date in the first column. Use Up and Down arrow keys, Home or End to move between hours, then Enter or Space to select.
| U | PDT |
|---|---|
| 1:00am | |
| 2:00am | |
| 3:00am | |
| 4:00am | |
| 5:00am | |
| 6:00am | |
| 7:00am | |
| 8:00am | |
| 9:00am | |
| 10:00am | |
| 11:00am | |
| 12:00pm | |
| 1:00pm | |
| 2:00pm | |
| 3:00pm | |
| 4:00pm | |
| 5:00pm | |
| 6:00pm | |
| 7:00pm | |
| 8:00pm | |
| 9:00pm | |
| 10:00pm | |
| 11:00pm | |
| 12:00am next day | |
| 01:00 | |
| 02:00 | |
| 03:00 | |
| 04:00 | |
| 05:00 | |
| 06:00 | |
| 07:00 | |
| 08:00 | |
| 09:00 | |
| 10:00 | |
| 11:00 | |
| 12:00 | |
| 13:00 | |
| 14:00 | |
| 15:00 | |
| 16:00 | |
| 17:00 | |
| 18:00 | |
| 19:00 | |
| 20:00 | |
| 21:00 | |
| 22:00 | |
| 23:00 | |
| 00:00 next day |
Uniform Time Zone
Offset: U is 8 hours behind Greenwich Mean Time (GMT).
Countries using this time zone: Mexico, Pitcairn, United States
Principal Cities: The largest city in the U time zone is Los Angeles in the United States, with about 3.821 million people. Other major cities in this time zone include Tijuana, San Diego, Mexicali, San Jose.
Daylight Saving: Some places on Uniform Time Zone (U) keep the same time all year, while others use U for only part of the year and change their clocks for daylight saving time; see upcoming clock changes worldwide.
Today some of the shaded areas are on UTC−7 (PDT).
U representations, usage and related time zones
- -08 - basic short
- -0800 - basic
- -08:00 - extended
- -0800 - sign character (-) followed by a four digit time providing hours (08) and minutes (00) of the offset. Indicates an offset of eight hours to the west of the zero meridian.
- Uniform - Military abbreviation for U
- U - short form of 'Uniform'
- AKDT - Alaska Daylight Time
- PST - Pacific Standard Time
- PT - Pacific Time
- PST - Pitcairn Standard Time
- U - Uniform Time Zone
Pacific Daylight Time
Offset: PDT is 7 hours behind Greenwich Mean Time (GMT).
Countries using this time zone: Mexico, United States
Principal Cities: The largest city in the PDT time zone is Los Angeles in the United States, with about 3.821 million people. Other major cities in this time zone include Tijuana, San Diego, Mexicali, San Jose.
French: HAP - Heure Avancée du Pacifique
Spanish: PT - Zona Noroeste
Today all shaded areas are on PDT.
Daylight Saving: Pacific Daylight Time (PDT) is a daylight saving/summer time zone. During winter, some places set clocks back one hour and observe Pacific Standard Time (PST).
Start: Pacific Daylight Time (PDT) started on Sunday, March 8, 2026 at 2:00 am02:00 local time and clocks were set one hour forward to Sunday, March 8, 2026, 3:00 am03:00. Daylight saving starts annually on the second Sunday of March.
End: Pacific Daylight Time (PDT) ends on Sunday, November 1, 2026 at 2:00 am02:00 local time and clocks are set one hour back to Sunday, November 1, 2026, 1:00 am01:00 local standard time instead. Daylight saving ends annually on the first Sunday of November.
See USA daylight saving time and upcoming clock changes worldwide.
PDT representations, usage and related time zones
- -07 - basic short
- -0700 - basic
- -07:00 - extended
- -0700 - sign character (-) followed by a four digit time providing hours (07) and minutes (00) of the offset. Indicates an offset of seven hours to the west of the zero meridian.
- Tango - Military abbreviation for PDT
- T - short form of 'Tango'
- America/Ensenada
- America/Los_Angeles
- America/Santa_Isabel
- America/Tijuana
- America/Vancouver
- Canada/Pacific
- Mexico/BajaNorte
- PST8PDT
- US/Pacific
- MST - Mountain Standard Time
- PDT - Pacific Daylight Time
- YST - Yukon Standard Time
- T - Tango Time Zone