IST
India Standard Time
GMT +5:30
12am
3am
6am
9am
12pm
3pm
6pm
9pm
ORAT
Oral Time
GMT +5
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

IST is 30 minutes ahead of ORAT. IST uses GMT +5:30, and ORAT uses GMT +5 for this comparison.

For example, 5:30 pm IST is 5:00 pm ORAT. Use the converter above to adjust the date or time and create a shareable meeting link.

Best meeting overlap: 9:30am-5pm IST, which is 9am-4:30pm ORAT.

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

Time Difference

India Standard Time is 0 hours and 30 minutes ahead of Oral Time
5:30 pm17:30 in IST is 5:00 pm17:00 in ORAT

IST to ORAT call time
Best time for a conference call or a meeting is between 9:30am-5pm in IST which corresponds to 9am-4:30pm in ORAT

5:30 pm17:30 India Standard Time (IST). Offset UTC +5:30 hours
5:00 pm17:00 Oral Time (ORAT). Offset UTC +5:00 hours

5:30 pm17:30 IST / 5:00 pm17:00 ORAT

ISTORAT
12am (midnight)11:30 pm
1am12:30 am
2am1:30 am
3am2:30 am
4am3:30 am
5am4:30 am
6am5:30 am
7am6:30 am
8am7:30 am
9am8:30 am
10am9:30 am
11am10:30 am
12pm (noon)11:30 am
1pm12:30 pm
2pm1:30 pm
3pm2:30 pm
4pm3:30 pm
5pm4:30 pm
6pm5:30 pm
7pm6:30 pm
8pm7:30 pm
9pm8:30 pm
10pm9:30 pm
11pm10:30 pm
00:0023:30
01:0000:30
02:0001:30
03:0002:30
04:0003:30
05:0004:30
06:0005:30
07:0006:30
08:0007:30
09:0008:30
10:0009:30
11:0010:30
12:0011:30
13:0012:30
14:0013:30
15:0014:30
16:0015:30
17:0016:30
18:0017:30
19:0018:30
20:0019:30
21:0020:30
22:0021:30
23:0022:30

India Standard Time

Offset: IST is 5 hours and 30 minutes ahead Greenwich Mean Time (GMT) and is used in Asia

Countries using this time zone: India

Principal Cities: The largest city in the IST time zone is Mumbai in India, with about 12.692 million people. Other major cities in this time zone include Delhi, Bangalore, Kolkata, Chennai.

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

IST Time Zone Geo Map
IST timezone map

IST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +0530 - basic
  • +05:30 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0530 - sign character (+) followed by a four digit time providing hours (05) and minutes (30) of the offset. Indicates an offset of five hours and thirty minutes to the east of the zero meridian.
IANA/Olson: Reflects IST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Asia/Calcutta
  • Asia/Kolkata
IST Abbreviation: Several time zones share IST abbreviation and it could refer to these time zones
  • India Standard Time - UTC +5:30
  • Irish Standard Time - UTC +1
  • Israel Standard Time - UTC +2

Oral Time

Offset: ORAT is 5 hours ahead Greenwich Mean Time (GMT) and is used in Asia

Countries using this time zone: Kazakhstan

Principal Cities: The largest city in the ORAT time zone is Oral in Kazakhstan, with about 200,000 people. Other major cities in this time zone include Atyrau, Qulsary, Aqsay, Shalkar.

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

ORAT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +05 - basic short
  • +0500 - basic
  • +05:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +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 east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Echo - Military abbreviation for ORAT
  • E - short form of 'Echo'
Time zones with the GMT +5 offset:
  • AMST - Armenia Summer Time
  • AQTT - Aqtobe Time
  • AZST - Azerbaijan Summer Time
  • E - Echo Time Zone
  • MAWT - Mawson Time
  • MVT - Maldives Time
  • ORAT - Oral Time
  • PKT - Pakistan Standard Time
  • TFT - French Southern and Antarctic Time
  • TJT - Tajikistan Time
  • TMT - Turkmenistan Time
  • UZT - Uzbekistan Time
  • YEKT - Yekaterinburg Time
  • HMT - Heard and McDonald Islands Time