Z
Zulu Time Zone
GMT +0
12am
3am
6am
9am
12pm
3pm
6pm
9pm
C
Charlie Time Zone
GMT +3
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

Z is 3 hours behind C. Z uses GMT +0, and C uses GMT +3 for this comparison.

For example, 12:00 pm Z is 3:00 pm C. Use the converter above to adjust the date or time and create a shareable meeting link.

Best meeting overlap: 9am-2pm Z, which is 12pm-5pm C.

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

Time Difference

Zulu Time Zone is 3 hours behind Charlie Time Zone
12:00 pm12:00 in Z is 3:00 pm15:00 in C

Z to C call time
Best time for a conference call or a meeting is between 9am-2pm in Z which corresponds to 12pm-5pm in C

12:00 pm12:00 Zulu Time Zone (Z). Offset UTC 0:00 hours
3:00 pm15:00 Charlie Time Zone (C). Offset UTC +3:00 hours

12:00 pm12:00 Z / 3:00 pm15:00 C

ZC
12am (midnight)3am
1am4am
2am5am
3am6am
4am7am
5am8am
6am9am
7am10am
8am11am
9am12pm (noon)
10am1pm
11am2pm
12pm (noon)3pm
1pm4pm
2pm5pm
3pm6pm
4pm7pm
5pm8pm
6pm9pm
7pm10pm
8pm11pm
9pm12am (midnight)
10pm1am
11pm2am
00:0003:00
01:0004:00
02:0005:00
03:0006:00
04:0007:00
05:0008:00
06:0009:00
07:0010:00
08:0011:00
09:0012:00
10:0013:00
11:0014:00
12:0015:00
13:0016:00
14:0017:00
15:0018:00
16:0019:00
17:0020:00
18:0021:00
19:0022:00
20:0023:00
21:0000:00
22:0001:00
23:0002:00

Zulu Time Zone

Offset: Z is 0 hours ahead Greenwich Mean Time (GMT) and is used in Military

Coordinated Universal Time (UTC) is the world time standard that regulates clocks and time. It is successor to Greenwich Mean Time (GMT). For casual use, UTC is the same as GMT, but is used by the scientific community.
UTC is the time standard commonly used across the world since 1972. It is used in many technical fields, like aviation industry and meteorologists, also used to synchronize time across internet networks.

Z representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • Z - is the zone designator for the zero UTC/GMT offset, also known as 'Zulu' time
  • +00 - basic short
  • +0000 - basic
  • +00:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0000 - sign character (+) followed by a four digit time providing hours (00) and minutes (00) of the offset. Indicates the zero UTC/GMT offset.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Zulu - Military abbreviation for Z
  • Z - short form of 'Zulu'
Time zones with the GMT +0 offset:
  • EGST - Eastern Greenland Summer Time
  • GMT - Greenwich Mean Time
  • WET - Western European Time
  • AZOST - Azores Summer Time
  • UTC - Universal Time Coordinated
  • WT - Western Sahara Standard Time
  • Z - Zulu Time Zone

Charlie Time Zone

Offset: C is 3 hours ahead Greenwich Mean Time (GMT) and is used in Military

Daylight Saving: Clocks in Charlie Time Zone (C) do not change for daylight saving time, so C stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter.

C representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +03 - basic short
  • +0300 - basic
  • +03:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +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.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Charlie - Military abbreviation for C
  • C - short form of 'Charlie'
Time zones with the GMT +3 offset:
  • 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