SRT to ADT Converter
Quick answers
Selected conversion
9:00 am09:00 SRT (UTC-3), Oct 7, 2026 = 9:00 am09:00 ADT (UTC-3), Oct 7, 2026
SRT and ADT have the same local time.
SRT and ADT examples
These examples always use SRT (UTC-3) and ADT (UTC-3). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.
SRT and ADT have the same local time.
How the time difference changes
For most of the year, SRT and ADT have the same time. At other times of the year, SRT is 1 hour ahead of AST.
For most of the year, working hours of 9:00 am to 5:00 pm in SRT correspond to 9:00 am to 5:00 pm in ADT. At other times of the year, working hours of 9:00 am to 5:00 pm in SRT correspond to 8:00 am to 4:00 pm in AST.For most of the year, working hours of 09:00 to 17:00 in SRT correspond to 09:00 to 17:00 in ADT. At other times of the year, working hours of 09:00 to 17:00 in SRT correspond to 08:00 to 16:00 in AST.
Compare SRT time with ADT time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Suriname Time and Atlantic Daylight Time have the same local time.
9:00 am09:00 in SRT is 9:00 am09:00 in ADT
SRT to ADT call time
Best time for a conference call or a meeting is between 9am-5pm09:00-17:00 in SRT which corresponds to 9am-5pm09:00-17:00 in ADT
9:00 am09:00 Suriname Time (SRT). Offset UTC -3:00 hours
9:00 am09:00 Atlantic Daylight Time (ADT). Offset UTC -3:00 hours
9:00 am09:00 SRT / 9:00 am09:00 ADT
| SRT | ADT |
|---|---|
| 12:00am | 12:00am |
| 1:00am | 1:00am |
| 2:00am | 2:00am |
| 3:00am | 3:00am |
| 4:00am | 4:00am |
| 5:00am | 5:00am |
| 6:00am | 6:00am |
| 7:00am | 7:00am |
| 8:00am | 8:00am |
| 9:00am | 9:00am |
| 10:00am | 10:00am |
| 11:00am | 11:00am |
| 12:00pm | 12:00pm |
| 1:00pm | 1:00pm |
| 2:00pm | 2:00pm |
| 3:00pm | 3:00pm |
| 4:00pm | 4:00pm |
| 5:00pm | 5:00pm |
| 6:00pm | 6:00pm |
| 7:00pm | 7:00pm |
| 8:00pm | 8:00pm |
| 9:00pm | 9:00pm |
| 10:00pm | 10:00pm |
| 11:00pm | 11:00pm |
| 00:00 | 00:00 |
| 01:00 | 01:00 |
| 02:00 | 02:00 |
| 03:00 | 03:00 |
| 04:00 | 04:00 |
| 05:00 | 05:00 |
| 06:00 | 06:00 |
| 07:00 | 07:00 |
| 08:00 | 08:00 |
| 09:00 | 09:00 |
| 10:00 | 10:00 |
| 11:00 | 11:00 |
| 12:00 | 12:00 |
| 13:00 | 13:00 |
| 14:00 | 14:00 |
| 15:00 | 15:00 |
| 16:00 | 16:00 |
| 17:00 | 17:00 |
| 18:00 | 18:00 |
| 19:00 | 19:00 |
| 20:00 | 20:00 |
| 21:00 | 21:00 |
| 22:00 | 22:00 |
| 23:00 | 23:00 |
Suriname Time
Offset: SRT is 3 hours behind Greenwich Mean Time (GMT) and is used in South America
Countries using this time zone: Suriname
Principal Cities: The largest city in the SRT time zone is Paramaribo in Suriname, with about 223,757 people. Other major cities in this time zone include Lelydorp.
Daylight Saving: Clocks in Suriname Time (SRT) do not change for daylight saving time, so SRT stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter; see upcoming clock changes worldwide.
SRT 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 SRT
- P - short form of 'Papa'
- ADT - Atlantic Daylight Time
- PMT - Pierre & Miquelon Standard Time
- PMST - Pierre & Miquelon Standard Time
- AMST - Amazon Summer Time
- ART - Argentina Time
- BRT - Brasília time
- CLST - Chile Summer Time
- FKST - Falkland Islands Summer Time
- GFT - French Guiana Time
- P - Papa Time Zone
- PYST - Paraguay Summer Time
- SRT - Suriname Time
- UYT - Uruguay Time
Atlantic Daylight Time
Offset: ADT is 3 hours behind Greenwich Mean Time (GMT) and is used in North America
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, Dartmouth, Moncton, Saint John.
French: HAA - Heure Avancée de l'Atlantique
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.
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 - Brasília time
- CLST - Chile Summer Time
- FKST - Falkland Islands Summer Time
- GFT - French Guiana Time
- P - Papa Time Zone
- PYST - Paraguay Summer Time
- SRT - Suriname Time
- UYT - Uruguay Time