ADT to PHT Converter
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Quick answers
Selected conversion
9:00 am09:00 ADT (UTC-3), Oct 18, 2026 = 8:00 pm20:00 PHT (UTC+8), Oct 18, 2026
ADT is 11 hours behind PHT.
ADT and PHT examples
These examples always use ADT (UTC-3) and PHT (UTC+8). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.
ADT is 11 hours behind PHT.
How the time difference changes
For most of the year, ADT is 11 hours behind PHT. From Nov 1, 2026 to Mar 14, 2027, AST is 12 hours behind PHT.
For most of the year, working hours of 9:00 am to 6:00 pm in ADT correspond to 8:00 pm to 5:00 am (next day) in PHT. At other times of the year, working hours of 9:00 am to 6:00 pm in AST correspond to 9:00 pm to 6:00 am (next day) in PHT.For most of the year, working hours of 09:00 to 18:00 in ADT correspond to 20:00 to 05:00 (next day) in PHT. At other times of the year, working hours of 09:00 to 18:00 in AST correspond to 21:00 to 06:00 (next day) in PHT.
Compare ADT time with PHT time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Atlantic Daylight Time is 11 hours behind Philippine Time.
9:00 am09:00 in ADT is 8:00 pm20:00 in PHT
ADT to PHT call time
Best time for a conference call or a meeting is between 7:30am-8:30am07:30-08:30 in ADT which corresponds to 6:30pm-7:30pm18:30-19:30 in PHT. Their 9am–6pm09:00–18:00 working hours do not overlap; this is a suggested compromise.
9:00 am09:00 Atlantic Daylight Time (ADT). Offset UTC -3:00 hours
8:00 pm20:00 Philippine Time (PHT). Offset UTC +8:00 hours
9:00 am09:00 ADT / 8:00 pm20:00 PHT
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.
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Atlantic Daylight Time
Offset: ADT is 3 hours behind Greenwich Mean Time (GMT).
Countries using this time zone: Bermuda, Canada, Greenland
Principal Cities: The largest city in the ADT time zone is Halifax in Canada, with about 471,559 people. Other major cities in this time zone include Sydney, Moncton, Saint John, Fredericton.
French: HAA - Heure Avancée de l'Atlantique
Today all shaded areas are on ADT.
Daylight Saving: Atlantic Daylight Time (ADT) is a daylight saving/summer time zone. During winter, some places set clocks back one hour and observe Atlantic Standard Time (AST).
Start: Atlantic Daylight Time (ADT) 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: Atlantic Daylight Time (ADT) 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 Canada daylight saving time and upcoming clock changes worldwide.
ADT representations, usage and related time zones
- -03 - basic short
- -0300 - basic
- -03:00 - extended
- -0300 - sign character (-) followed by a four digit time providing hours (03) and minutes (00) of the offset. Indicates an offset of three hours to the west of the zero meridian.
- Papa - Military abbreviation for ADT
- P - short form of 'Papa'
- America/Glace_Bay
- America/Goose_Bay
- America/Halifax
- America/Moncton
- America/Thule
- Atlantic/Bermuda
- Canada/Atlantic
- ADT - Atlantic Daylight Time
- PMT - Pierre & Miquelon Standard Time
- PMST - Pierre & Miquelon Standard Time
- AMST - Amazon Summer Time
- ART - Argentina Time
- BRT - Brasilia Time
- CLST - Chile Summer Time
- FKST - Falkland Islands Summer Time
- FKT - Falkland Islands Time
- GFT - French Guiana Time
- P - Papa Time Zone
- PYST - Paraguay Summer Time
- PYT - Paraguay Time
- SRT - Suriname Time
- UYT - Uruguay Time
Philippine Time
Offset: PHT is 8 hours ahead of Greenwich Mean Time (GMT).
Countries using this time zone: Philippines
Principal Cities: The largest city in the PHT time zone is Quezon City in the Philippines, with about 3.084 million people. Other major cities in this time zone include Davao, Caloocan, Manila, Taguig.
Daylight Saving: Clocks in Philippine Time (PHT) do not change for daylight saving time, so PHT stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter; see upcoming clock changes worldwide.
PHT 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 east of the zero meridian.
- Hotel - Military abbreviation for PHT
- H - short form of 'Hotel'
- ACT - ASEAN Common Time
- AWST - Australian Western Standard Time
- BNT - Brunei Darussalam Time
- CAST - Casey Time
- CHOT - Choibalsan Time
- CST - China Standard Time
- H - Hotel Time Zone
- HKT - Hong Kong Time
- HOVST - Hovd Summer Time
- IRKT - Irkutsk Time
- KRAST - Krasnoyarsk Summer Time
- MYT - Malaysia Time
- PHT - Philippine Time
- SGT - Singapore Time
- ULAT - Ulaanbaatar Time
- WITA - Central Indonesian Time