Updating current time…
HNA
Heure Normale de l'Atlantique
GMT -4
12am
3am
6am
9am
12pm
3pm
6pm
9pm
IST
India Standard Time
GMT +5:30
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

Selected conversion

8:00 am08:00 HNA (UTC-4), Oct 10, 2026 = 5:30 pm17:30 IST (UTC+5:30), Oct 10, 2026

HNA is 9 hours and 30 minutes behind IST.

HNA and IST examples

These examples always use HNA (UTC-4) and IST (UTC+5:30). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.

HNA is 9 hours and 30 minutes behind IST.

How the time difference changes

HNA Caribbean is 9 hours and 30 minutes behind IST year-round.

Working hours of 9:00 am to 5:00 pm in HNA Caribbean correspond to 6:30 pm to 2:30 am (next day) in IST.Working hours of 09:00 to 17:00 in HNA Caribbean correspond to 18:30 to 02:30 (next day) in IST.

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

Time Difference

Heure Normale de l'Atlantique is 9 hours and 30 minutes behind India Standard Time.
8:00 am08:00 in HNA is 5:30 pm17:30 in IST

HNA to IST call time
Best time for a conference call or a meeting is between 8am-9am08:00-09:00 in HNA which corresponds to 5:30pm-6:30pm17:30-18:30 in IST

8:00 am08:00 Heure Normale de l'Atlantique (HNA). Offset UTC -4:00 hours
5:30 pm17:30 India Standard Time (IST). Offset UTC +5:30 hours

8:00 am08:00 HNA / 5:30 pm17:30 IST

HNAIST
12:00am9:30am
1:00am10:30am
2:00am11:30am
3:00am12:30pm
4:00am1:30pm
5:00am2:30pm
6:00am3:30pm
7:00am4:30pm
8:00am5:30pm
9:00am6:30pm
10:00am7:30pm
11:00am8:30pm
12:00pm9:30pm
1:00pm10:30pm
2:00pm11:30pm
3:00pm12:30am
4:00pm1:30am
5:00pm2:30am
6:00pm3:30am
7:00pm4:30am
8:00pm5:30am
9:00pm6:30am
10:00pm7:30am
11:00pm8:30am
00:0009:30
01:0010:30
02:0011:30
03:0012:30
04:0013:30
05:0014:30
06:0015:30
07:0016:30
08:0017:30
09:0018:30
10:0019:30
11:0020:30
12:0021:30
13:0022:30
14:0023:30
15:0000:30
16:0001:30
17:0002:30
18:0003:30
19:0004:30
20:0005:30
21:0006:30
22:0007:30
23:0008:30

Heure Normale de l'Atlantique

Offset: HNA is 4 hours behind Greenwich Mean Time (GMT) and is used in America

Countries using this time zone: Antigua & Barbuda, Anguilla, Aruba, Barbados, St Barthelemy, Bermuda, Caribbean NL, Canada, Curaçao, Dominica, Dominican Republic, Grenada, Greenland, Guadeloupe, St Kitts & Nevis, St Lucia, St Martin (French), Martinique, Montserrat, Puerto Rico, St Maarten (Dutch), Trinidad & Tobago, St Vincent, Virgin Islands (UK), Virgin Islands (US)

Principal Cities: The largest city in the HNA time zone is Santo Domingo in Dominican Republic, with about 2.202 million people. Other major cities in this time zone include Santiago de los Caballeros, Santo Domingo Oeste, Halifax, San Juan.

Daylight Saving: Clocks in Heure Normale de l'Atlantique (HNA) do not change for daylight saving time, so HNA stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter; see upcoming clock changes worldwide.

HNA 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 west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Quebec - Military abbreviation for HNA
  • Q - short form of 'Quebec'
Time zones with the GMT -4 offset:
  • AST - Atlantic Standard Time
  • EDT - Eastern Daylight Time
  • AMT - Amazon Time
  • BOT - Bolivia Time
  • CDT - Cuba Daylight Time
  • CLT - Chile Standard Time
  • FKT - Falkland Island Time
  • GYT - Guyana Time
  • HLV - Hora Legal de Venezuela
  • PYT - Paraguay Time
  • Q - Quebec Time Zone
  • VET - Venezuelan Standard Time

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, Chennai, Kolkata.

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; see upcoming clock changes worldwide.

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