Oman
GST
12am
3am
6am
9am
12pm
3pm
6pm
9pm
CHAST
Chatham Island Standard Time
GMT +12:45
tomorrow
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Time Difference

GST (Gulf Standard Time) is 8 hours and 45 minutes behind Chatham Island Standard Time
4:00 pm16:00 in Oman Smart Future City, Oman is 12:45 am00:45 in CHAST

Oman Smart Future City to CHAST call time
Best time for a conference call or a meeting is between 8am-9am in Oman Smart Future City which corresponds to 4:45pm-5:45pm in CHAST

4:00 pm16:00 GST (Gulf Standard Time) (Oman Smart Future City, Oman). Offset UTC +4:00 hours
12:45 am00:45 Chatham Island Standard Time (CHAST). Offset UTC +12:45 hours

4:00 pm16:00 Oman Smart Future City, Oman / 12:45 am00:45 CHAST

Oman Smart Future City, OmanCHAST
12am (midnight)8:45 am
1am9:45 am
2am10:45 am
3am11:45 am
4am12:45 pm
5am1:45 pm
6am2:45 pm
7am3:45 pm
8am4:45 pm
9am5:45 pm
10am6:45 pm
11am7:45 pm
12pm (noon)8:45 pm
1pm9:45 pm
2pm10:45 pm
3pm11:45 pm
4pm12:45 am
5pm1:45 am
6pm2:45 am
7pm3:45 am
8pm4:45 am
9pm5:45 am
10pm6:45 am
11pm7:45 am
00:0008:45
01:0009:45
02:0010:45
03:0011:45
04:0012:45
05:0013:45
06:0014:45
07:0015:45
08:0016:45
09:0017:45
10:0018:45
11:0019:45
12:0020:45
13:0021:45
14:0022:45
15:0023:45
16:0000:45
17:0001:45
18:0002:45
19:0003:45
20:0004:45
21:0005:45
22:0006:45
23:0007:45

Oman Smart Future City Information

Time Zone

Abbreviation / Name
GST - Gulf Standard Time
UTC / GMT Offset
+4:00 hours during Gulf Standard Time, currently in use.

Oman Smart Future City Facts

Country
Oman
Alternative Names
Oman Smart City
Population
25,000
Currency
Rial (OMR)
Geographic Coordinates
23° 39' N Latitude / 57° 35' E Longitude
International Dialing Code
+968

Chatham Island Standard Time

Offset: CHAST is 12 hours and 45 minutes ahead Greenwich Mean Time (GMT) and is used in Pacific

CHAST Time Zone Geo Map
CHAST timezone map

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 Chatham Island Daylight Time (CHADT).

End: Chatham Island Standard Time (CHAST) has ended on Sunday, September 28, 2025 at 2:45 am local time and clocks were set one hour forward to Sunday, September 28, 2025, 3:45 am local daylight time instead. Standard time ends annually the on last Sunday of September.

Start: Chatham Island Standard Time (CHAST) starts on Sunday, April 5, 2026 at 3:45 am local time and clocks are set one hour back to Sunday, April 5, 2026, 2:45 am. Standard time starts annually the on first Sunday of April.

CHAST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +1245 - basic
  • +12:45 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +1245 - sign character (+) followed by a four digit time providing hours (12) and minutes (45) of the offset. Indicates twelve hour and forty-five minutes time differences to the east of the zero meridian.