CDT to AST Arabia Converter
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Add one or more places to compare local times, adjust the date, and share the result.
Quick answers
Selected conversion
7:00 am07:00 CDT (UTC-5), Oct 22, 2026 = 3:00 pm15:00 AST (UTC+3), Oct 22, 2026
CDT is 8 hours behind AST.
CDT and AST examples
These examples always use CDT (UTC-5) and AST (UTC+3). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.
CDT is 8 hours behind AST.
How the time difference changes
For most of the year, CDT is 8 hours behind AST Arabia. From Nov 1, 2026 to Mar 14, 2027, CST is 9 hours behind AST Arabia.
For most of the year, working hours of 9:00 am to 6:00 pm in CDT correspond to 5:00 pm to 2:00 am (next day) in AST Arabia. At other times of the year, working hours of 9:00 am to 6:00 pm in CST correspond to 6:00 pm to 3:00 am (next day) in AST Arabia.For most of the year, working hours of 09:00 to 18:00 in CDT correspond to 17:00 to 02:00 (next day) in AST Arabia. At other times of the year, working hours of 09:00 to 18:00 in CST correspond to 18:00 to 03:00 (next day) in AST Arabia.
Compare CDT time with AST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Central Daylight Time is 8 hours behind Arabia Standard Time.
7:00 am07:00 in CDT is 3:00 pm15:00 in AST
CDT to AST call time
Best time for a conference call or a meeting is between 9am-10am09:00-10:00 in CDT which corresponds to 5pm-6pm17:00-18:00 in AST
7:00 am07:00 Central Daylight Time (CDT). Offset UTC -5:00 hours
3:00 pm15:00 Arabia Standard Time (AST). Offset UTC +3:00 hours
7:00 am07:00 CDT / 3:00 pm15:00 AST
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.
| CDT | AST |
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Central Daylight Time
Offset: CDT is 5 hours behind Greenwich Mean Time (GMT).
Countries using this time zone: Canada, Mexico, United States
Principal Cities: The largest city in the CDT time zone is Chicago in the United States, with about 2.664 million people. Other major cities in this time zone include Houston, San Antonio, Dallas, Fort Worth.
French: HAC - Heure Avancée du Centre
Spanish: CT - Zona Centro
Today all shaded areas are on CDT.
Daylight Saving: Central Daylight Time (CDT) is a daylight saving/summer time zone. During winter, some places set clocks back one hour and observe Central Standard Time (CST).
Start: Central Daylight Time (CDT) 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: Central Daylight Time (CDT) 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.
CDT representations, usage and related time zones
- -05 - basic short
- -0500 - basic
- -05:00 - extended
- -0500 - sign character (-) followed by a four digit time providing hours (05) and minutes (00) of the offset. Indicates an offset of five hours to the west of the zero meridian.
- Romeo - Military abbreviation for CDT
- R - short form of 'Romeo'
- America/Chicago
- America/Indiana/Knox
- America/Indiana/Tell_City
- America/Knox_IN
- America/Matamoros
- America/Menominee
- America/North_Dakota/Beulah
- America/North_Dakota/Center
- America/North_Dakota/New_Salem
- America/Ojinaga
- America/Rainy_River
- America/Rankin_Inlet
- America/Resolute
- America/Winnipeg
- CST6CDT
- Canada/Central
- US/Central
- US/Indiana-Starke
- Central Daylight Time - UTC -5
- Cuba Daylight Time - UTC -4
- CDT - Central Daylight Time
- EST - Eastern Standard Time
- ET - Eastern Time
- COT - Colombia Time
- CST - Cuba Standard Time
- EASST - Easter Island Summer Time
- ECT - Ecuador Time
- PET - Peru Time
- R - Romeo Time Zone
Arabia Standard Time
Offset: AST is 3 hours ahead of Greenwich Mean Time (GMT).
Countries using this time zone: Bahrain, Iraq, Kuwait, Qatar, Saudi Arabia, Yemen
Principal Cities: The largest city in the AST time zone is Baghdad in Iraq, with about 7.216 million people. Other major cities in this time zone include Jeddah, Riyadh, Sanaa, Mosul.
Daylight Saving: Clocks in Arabia Standard Time (AST) do not change for daylight saving time, so AST stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter; see upcoming clock changes worldwide.
AST 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 east of the zero meridian.
- Charlie - Military abbreviation for AST
- C - short form of 'Charlie'
- Atlantic Standard Time - UTC -4
- Arabia Standard Time - UTC +3
- EEST - Eastern European Summer Time
- MSK - Moscow Standard Time
- AST - Arabia Standard Time
- C - Charlie Time Zone
- EAT - Eastern Africa Time
- FET - Further Eastern European Time
- IDT - Israel Daylight Time
- TRT - Turkey Time