IST
India Standard Time
GMT +5:30
12am
3am
6am
9am
12pm
3pm
6pm
9pm
AMT
Armenia Time
GMT +4
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

IST is 1 hour and 30 minutes ahead of AMT. IST uses GMT +5:30, and AMT uses GMT +4 for this comparison.

For example, 5:30 pm IST is 4:00 pm AMT. Use the converter above to adjust the date or time and create a shareable meeting link.

Best meeting overlap: 10:30am-5pm IST, which is 9am-3:30pm AMT.

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

Time Difference

India Standard Time is 1 hour and 30 minutes ahead of Armenia Time
5:30 pm17:30 in IST is 4:00 pm16:00 in AMT

IST to AMT call time
Best time for a conference call or a meeting is between 10:30am-5pm in IST which corresponds to 9am-3:30pm in AMT

5:30 pm17:30 India Standard Time (IST). Offset UTC +5:30 hours
4:00 pm16:00 Armenia Time (AMT). Offset UTC +4:00 hours

5:30 pm17:30 IST / 4:00 pm16:00 AMT

ISTAMT
12am (midnight)10:30 pm
1am11:30 pm
2am12:30 am
3am1:30 am
4am2:30 am
5am3:30 am
6am4:30 am
7am5:30 am
8am6:30 am
9am7:30 am
10am8:30 am
11am9:30 am
12pm (noon)10:30 am
1pm11:30 am
2pm12:30 pm
3pm1:30 pm
4pm2:30 pm
5pm3:30 pm
6pm4:30 pm
7pm5:30 pm
8pm6:30 pm
9pm7:30 pm
10pm8:30 pm
11pm9:30 pm
00:0022:30
01:0023:30
02:0000:30
03:0001:30
04:0002:30
05:0003:30
06:0004:30
07:0005:30
08:0006:30
09:0007:30
10:0008:30
11:0009:30
12:0010:30
13:0011:30
14:0012:30
15:0013:30
16:0014:30
17:0015:30
18:0016:30
19:0017:30
20:0018:30
21:0019:30
22:0020:30
23:0021:30

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

Armenia Time

Offset: AMT is 4 hours ahead Greenwich Mean Time (GMT) and is used in Asia

Countries using this time zone: Armenia

Principal Cities: The largest city in the AMT time zone is Yerevan in Armenia, with about 1.093 million people. Other major cities in this time zone include Gyumri, Vanadzor, Ejmiatsin, Hrazdan.

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

AMT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +04 - basic short
  • +0400 - basic
  • +04:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0400 - sign character (+) followed by a four digit time providing hours (04) and minutes (00) of the offset. Indicates an offset of four hours to the east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Delta - Military abbreviation for AMT
  • D - short form of 'Delta'
AMT Abbreviation: Several time zones share AMT abbreviation and it could refer to these time zones
  • Armenia Time - UTC +4
  • Amazon Time - UTC -4
Time zones with the GMT +4 offset:
  • KUYT - Kuybyshev Time
  • MSD - Moscow Daylight Time
  • SAMT - Samara Time
  • AMT - Armenia Time
  • AZT - Azerbaijan Time
  • D - Delta Time Zone
  • GET - Georgia Standard Time
  • GST - Gulf Standard Time
  • MUT - Mauritius Time
  • RET - Reunion Time
  • SCT - Seychelles Time