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ACDT
12am
3am
6am
9am
12pm
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6pm
9pm
CEST
12am
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6am
9am
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9pm

Quick answers

Selected conversion

10:30 pm22:30 ACDT (UTC+10:30), Oct 13, 2026 = 2:00 pm14:00 CEST (UTC+2), Oct 13, 2026

ACDT is 8 hours and 30 minutes ahead of CEST.

ACDT and CEST examples

These examples always use ACDT (UTC+10:30) and CEST (UTC+2). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.

ACDT is 8 hours and 30 minutes ahead of CEST.

How the time difference changes

Depending on seasonal clock changes, ACST is 7 hours and 30 minutes ahead of CEST, ACDT is 8 hours and 30 minutes ahead of CEST, or ACDT is 9 hours and 30 minutes ahead of CET.

Depending on seasonal clock changes, working hours of 9:00 am to 5:00 pm in ACST correspond to 1:30 am to 9:30 am in CEST, working hours of 9:00 am to 5:00 pm in ACDT correspond to 12:30 am to 8:30 am in CEST, or working hours of 9:00 am to 5:00 pm in ACDT correspond to 11:30 pm (previous day) to 7:30 am in CET.Depending on seasonal clock changes, working hours of 09:00 to 17:00 in ACST correspond to 01:30 to 09:30 in CEST, working hours of 09:00 to 17:00 in ACDT correspond to 00:30 to 08:30 in CEST, or working hours of 09:00 to 17:00 in ACDT correspond to 23:30 (previous day) to 07:30 in CET.

Compare ACDT time with CEST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.

Time Difference

Australian Central Daylight Time is 8 hours and 30 minutes ahead of Central European Summer Time.
10:30 pm22:30 in ACDT is 2:00 pm14:00 in CEST

ACDT to CEST call time
Best time for a conference call or a meeting is between 5pm-6pm17:00-18:00 in ACDT which corresponds to 8:30am-9:30am08:30-09:30 in CEST. Their 9am–5pm09:00–17:00 working hours do not overlap; this is a suggested compromise.

10:30 pm22:30 Australian Central Daylight Time (ACDT). Offset UTC +10:30 hours
2:00 pm14:00 Central European Summer Time (CEST). Offset UTC +2:00 hours

10:30 pm22:30 ACDT / 2:00 pm14:00 CEST

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Hourly time comparison
ACDTCEST
3:30pm previous day
4:30pm previous day
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15:30 previous day
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22:30 previous day
23:30 previous day
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Australian Central Daylight Time

Offset: ACDT is 10 hours and 30 minutes ahead of Greenwich Mean Time (GMT).

Countries using this time zone: Australia

Principal Cities: The largest city in the ACDT time zone is Adelaide in Australia, with about 1.469 million people. Other major cities in this time zone include Mount Gambier, Mount Barker, Whyalla, Gawler.

Map of the areas on Australian Central Daylight Time (ACDT)
ACDT part of the year

Today all shaded areas are on ACDT.

Daylight Saving: Australian Central Daylight Time (ACDT) is a daylight saving/summer time zone. During winter, some places set clocks back one hour and observe Australian Central Standard Time (ACST).

123456789101112Start: Australian Central Daylight Time (ACDT) started on Sunday, October 4, 2026 at 2:00 am02:00 local time and clocks were set one hour forward to Sunday, October 4, 2026, 3:00 am03:00. Daylight saving starts annually on the first Sunday of October.

123456789101112End: Australian Central Daylight Time (ACDT) ends on Sunday, April 4, 2027 at 3:00 am03:00 local time and clocks are set one hour back to Sunday, April 4, 2027, 2:00 am02:00 local standard time instead. Daylight saving ends annually on the first Sunday of April.

See upcoming clock changes worldwide.

ACDT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +1030 - basic
  • +10:30 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +1030 - sign character (+) followed by a four digit time providing hours (10) and minutes (30) of the offset. Indicates an offset of ten hours and thirty minutes to the east of the zero meridian.
IANA/Olson: Reflects ACDT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Australia/Adelaide
  • Australia/Broken_Hill
  • Australia/South
  • Australia/Yancowinna
Time zones with the GMT +10:30 offset:
  • ACDT - Australian Central Daylight Time
  • LHST - Lord Howe Standard Time

Central European Summer Time

Offset: CEST is 2 hours ahead of Greenwich Mean Time (GMT).

Countries using this time zone: Andorra, Albania, Austria, Bosnia & Herzegovina, Belgium, Switzerland, Czech Republic, Germany, Denmark, Spain, France, Gibraltar, Croatia, Hungary, Italy, Liechtenstein, Luxembourg, Monaco, Montenegro, North Macedonia, Malta, Netherlands, Norway, Poland, Serbia, Sweden, Slovenia, Svalbard & Jan Mayen, Slovakia, San Marino, Vatican City

Principal Cities: The largest city in the CEST time zone is Berlin in Germany, with about 3.426 million people. Other major cities in this time zone include Madrid, Rome, Paris, Hamburg.

German: MESZ - Mitteleuropäische Sommerzeit

Map of the areas on Central European Summer Time (CEST)
CEST part of the year

Today all shaded areas are on CEST.

Daylight Saving: Central European Summer Time (CEST) is a daylight saving/summer time zone. During winter, some places set clocks back one hour and observe Central European Time (CET).

123456789101112Start: Central European Summer Time (CEST) started on Sunday, March 29, 2026 at 2:00 am02:00 local time and clocks were set one hour forward to Sunday, March 29, 2026, 3:00 am03:00. Daylight saving starts annually on the last Sunday of March.

123456789101112End: Central European Summer Time (CEST) ends on Sunday, October 25, 2026 at 3:00 am03:00 local time and clocks are set one hour back to Sunday, October 25, 2026, 2:00 am02:00 local standard time instead. Daylight saving ends annually on the last Sunday of October.

See upcoming clock changes worldwide.

CEST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +02 - basic short
  • +0200 - basic
  • +02:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0200 - sign character (+) followed by a four digit time providing hours (02) and minutes (00) of the offset. Indicates an offset of two hours to the east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Bravo - Military abbreviation for CEST
  • B - short form of 'Bravo'
IANA/Olson: Reflects CEST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Africa/Ceuta
  • Arctic/Longyearbyen
  • Atlantic/Jan_Mayen
  • CET
  • Europe/Amsterdam
  • Europe/Andorra
  • Europe/Belgrade
  • Europe/Berlin
  • Europe/Bratislava
  • Europe/Brussels
  • Europe/Budapest
  • Europe/Busingen
  • Europe/Copenhagen
  • Europe/Gibraltar
  • Europe/Ljubljana
  • Europe/Luxembourg
  • Europe/Madrid
  • Europe/Malta
  • Europe/Monaco
  • Europe/Oslo
  • Europe/Paris
  • Europe/Podgorica
  • Europe/Prague
  • Europe/Rome
  • Europe/San_Marino
  • Europe/Sarajevo
  • Europe/Skopje
  • Europe/Stockholm
  • Europe/Tirane
  • Europe/Vaduz
  • Europe/Vatican
  • Europe/Vienna
  • Europe/Warsaw
  • Europe/Zagreb
  • Europe/Zurich
  • MET
  • Poland
Time zones with the GMT +2 offset:
  • 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