SAST to AST Converter
Time Difference
South Africa Standard Time is 5 hours ahead of Atlantic Daylight Time
12:00 am00:00 in SAST is 7:00 pm19:00 in ADT
SAST to AST call time
Best time for a conference call or a meeting is between 2pm-6pm in SAST which corresponds to 8am-12pm in AST
12:00 am00:00 South Africa Standard Time (SAST). Offset UTC +2:00 hours
7:00 pm19:00 Atlantic Daylight Time (ADT). Offset UTC -3:00 hours
12:00 am00:00 SAST / 7:00 pm19:00 ADT
SAST | ADT |
---|---|
12am (midnight) | 7pm |
1am | 8pm |
2am | 9pm |
3am | 10pm |
4am | 11pm |
5am | 12am (midnight) |
6am | 1am |
7am | 2am |
8am | 3am |
9am | 4am |
10am | 5am |
11am | 6am |
12pm (noon) | 7am |
1pm | 8am |
2pm | 9am |
3pm | 10am |
4pm | 11am |
5pm | 12pm (noon) |
6pm | 1pm |
7pm | 2pm |
8pm | 3pm |
9pm | 4pm |
10pm | 5pm |
11pm | 6pm |
0:00 | 19:00 |
1:00 | 20:00 |
2:00 | 21:00 |
3:00 | 22:00 |
4:00 | 23:00 |
5:00 | 0:00 |
6:00 | 1:00 |
7:00 | 2:00 |
8:00 | 3:00 |
9:00 | 4:00 |
10:00 | 5:00 |
11:00 | 6:00 |
12:00 | 7:00 |
13:00 | 8:00 |
14:00 | 9:00 |
15:00 | 10:00 |
16:00 | 11:00 |
17:00 | 12:00 |
18:00 | 13:00 |
19:00 | 14:00 |
20:00 | 15:00 |
21:00 | 16:00 |
22:00 | 17:00 |
23:00 | 18:00 |
South Africa Standard Time
Offset: SAST is 2 hours ahead Greenwich Mean Time (GMT) and is used in Africa
Countries: It is used in following countries: Lesotho, Eswatini (Swaziland), South Africa
Principal Cities: The largest city in the SAST timezone is Cape Town from South Africa with population about 3.433 million people. Other major cities in the area are Durban, Johannesburg, Soweto, Pretoria
Daylight Saving: South Africa Standard Time (SAST) is not adjusted for daylight saving therefore SAST remains the same through out the year. This means, unlike some time zones where the clock is set forward by one hour every summer and backward by one hour during winter to adjust for daylight saving, South Africa Standard Time remains the same

SAST representations, usage and related time zones
- +02 - basic short
- +0200 - basic
- +02:00 - extended
- +0200 - sign character (+) followed by a four digit time providing hours (02) and minutes (00) of the offset. Indicates two hour and zero minutes time differences to the east of the zero meridian.
- Bravo - Military abbreviation for SAST
- B - short form of 'Bravo'
- Africa/Johannesburg
- Africa/Maseru
- Africa/Mbabane
- CEST - Central European Summer Time
- EET - Eastern European Time
- MESZ - Mitteleuropäische Sommerzeit
- B - Bravo Time Zone
- CAT - Central Africa Time
- IST - Israel Standard Time
- SAST - South Africa Standard Time
- WAST - West Africa Summer Time
Atlantic Standard Time
Offset: AST is 4 hours behind Greenwich Mean Time (GMT) and is used in North America
Countries: It is used in following countries: Antigua & Barbuda, Anguilla, Aruba, Barbados, St Barthelemy, Bermuda, Caribbean NL, Canada, Curaçao, Dominica, Dominican Republic, Grenada, Greenland, Guadeloupe, St Kitts & Nevis, St Lucia, St Martin (French), Martinique, Montserrat, Puerto Rico, St Maarten (Dutch), Trinidad & Tobago, St Vincent, Virgin Islands (UK), Virgin Islands (US)
Principal Cities: The largest city in the AST timezone is Santo Domingo from Dominican Republic with population about 2.202 million people. Other major cities in the area are Santiago de los Caballeros, Santo Domingo Oeste, San Juan, Halifax
French: HNA - Heure Normale de l'Atlantique
Spanish: AST - Tiempo Estándar del Atlántico

Daylight Saving: This is a standard time zone, however during summer some places switch clocks for one hour forward when daylight saving comes into effect and observe Atlantic Daylight Time (ADT).
End: Atlantic Standard Time (AST) has ended on Sunday, March 9, 2025 at 2:00 am local time and clocks were set one hour forward to Sunday, March 9, 2025, 3:00 am local daylight time instead. Standard time ends annually the on second Sunday of March.
Start: Atlantic Standard Time (AST) starts on Sunday, November 2, 2025 at 2:00 am local time and clocks are set one hour back to Sunday, November 2, 2025, 1:00 am. Standard time starts annually the on first Sunday of November.
AST representations, usage and related time zones
- -04 - basic short
- -0400 - basic
- -04:00 - extended
- -0400 - sign character (-) followed by a four digit time providing hours (04) and minutes (00) of the offset. Indicates four hour and zero minutes time differences to the west of the zero meridian.
- Quebec - Military abbreviation for AST
- Q - short form of 'Quebec'
- America/Anguilla
- America/Antigua
- America/Aruba
- America/Barbados
- America/Blanc-Sablon
- America/Curacao
- America/Dominica
- America/Glace_Bay
- America/Goose_Bay
- America/Grenada
- America/Guadeloupe
- America/Halifax
- America/Kralendijk
- America/Lower_Princes
- America/Marigot
- America/Martinique
- America/Moncton
- America/Montserrat
- America/Port_of_Spain
- America/Puerto_Rico
- America/Santo_Domingo
- America/St_Barthelemy
- America/St_Kitts
- America/St_Lucia
- America/St_Thomas
- America/St_Vincent
- America/Thule
- America/Tortola
- America/Virgin
- Atlantic/Bermuda
- Canada/Atlantic
- Atlantic Standard Time - UTC -4
- Arabia Standard Time - UTC +3
- Argentina Standard Time - UTC -3
- Armenia Standard Time - UTC +4
- Azores Summer Time - UTC +0
- Apia Standard Time - UTC +13
- AST - Atlantic Standard Time
- EDT - Eastern Daylight Time
- AMT - Amazon Time
- BOT - Bolivia Time
- CDT - Cuba Daylight Time
- CLT - Chile Standard Time
- FKT - Falkland Island Time
- GYT - Guyana Time
- HLV - Hora Legal de Venezuela
- PYT - Paraguay Time
- Q - Quebec Time Zone
- VET - Venezuelan Standard Time