AEST to IST to NZST to London to GMT to New York City to Bogota Time Converter

Time Difference

Australian Eastern Standard Time is 4 hours and 30 minutes ahead of India Standard Time. Australian Eastern Standard Time is 3 hours behind New Zealand Daylight Time. Australian Eastern Standard Time is 10 hours ahead of GMT (Greenwich Mean Time). Australian Eastern Standard Time is 10 hours ahead of Greenwich Mean Time. Australian Eastern Standard Time is 15 hours ahead of EST (Eastern Standard Time). Australian Eastern Standard Time is 15 hours ahead of COT (Colombia Time).
10:00 pm22:00 in AEST is 5:30 pm17:30 in IST and is 1:00 am01:00 in NZDT (next day) and is 12:00 pm12:00 in London, United Kingdom and is 12:00 pm12:00 in GMT and is 7:00 am07:00 in New York City, NY, USA and is 7:00 am07:00 in Bogota, Colombia

AEST to IST call time
Best time for a conference call or a meeting is between 1:30pm-6pm13:30-18:00 in AEST which corresponds to 9am-1:30pm09:00-13:30 in IST.
AEST to NZDT call time
Best time for a conference call or a meeting is between 9am-3pm09:00-15:00 in AEST which corresponds to 12pm-6pm12:00-18:00 in NZDT.
AEST to London call time
Best time for a conference call or a meeting is between 6pm-7pm18:00-19:00 in AEST which corresponds to 8am-9am08:00-09:00 in London. Their 9am–6pm09:00–18:00 working hours do not overlap; this is a suggested compromise.
AEST to GMT call time
Best time for a conference call or a meeting is between 6pm-7pm18:00-19:00 in AEST which corresponds to 8am-9am08:00-09:00 in GMT. Their 9am–6pm09:00–18:00 working hours do not overlap; this is a suggested compromise.
AEST to New York City call time
Best time for a conference call or a meeting is between 8:30am-9:30am08:30-09:30 in AEST which corresponds to 5:30pm-6:30pm17:30-18:30 in New York City (previous day). Their 9am–6pm09:00–18:00 working hours do not overlap; this is a suggested compromise.
AEST to Bogotá call time
Best time for a conference call or a meeting is between 8:30am-9:30am08:30-09:30 in AEST which corresponds to 5:30pm-6:30pm17:30-18:30 in Bogotá (previous day). Their 9am–6pm09:00–18:00 working hours do not overlap; this is a suggested compromise.

10:00 pm22:00 Australian Eastern Standard Time (AEST). Offset UTC +10:00 hours
5:30 pm17:30 India Standard Time (IST). Offset UTC +5:30 hours
1:00 am01:00 New Zealand Daylight Time (NZDT). Offset UTC +13:00 hours
12:00 pm12:00 GMT (Greenwich Mean Time) (London, United Kingdom). Offset UTC 0:00 hours
12:00 pm12:00 Greenwich Mean Time (GMT). Offset UTC 0:00 hours
7:00 am07:00 EST (Eastern Standard Time) (New York City, NY, USA). Offset UTC -5:00 hours
7:00 am07:00 COT (Colombia Time) (Bogota, Colombia). Offset UTC -5:00 hours

10:00 pm22:00 AEST / 5:30 pm17:30 IST / 1:00 am01:00 NZDT (next day) / 12:00 pm12:00 London, United Kingdom / 12:00 pm12:00 GMT / 7:00 am07:00 New York City, NY, USA / 7:00 am07:00 Bogota, Colombia

Australian Eastern Standard Time

Offset: AEST is 10 hours ahead of Greenwich Mean Time (GMT).

Countries using this time zone: Australia

Principal Cities: The largest city in the AEST time zone is Sydney in Australia, with about 5.639 million people. Other major cities in this time zone include Melbourne, Brisbane, Gold Coast, Newcastle.

Daylight Saving: This is a standard time zone. During summer, some places set clocks forward one hour for daylight saving time and observe Australian Eastern Daylight Time (AEDT).

End: Australian Eastern Standard Time (AEST) ended on Sunday, October 4, 2026 at 2:00 am02:00 local time and clocks were set one hour forward to Sunday, October 4, 2026, 3:00 am03:00 local daylight time instead. Standard time ends annually on the first Sunday of October.

Start: Australian Eastern Standard Time (AEST) starts on Sunday, April 4, 2027 at 3:00 am03:00 local time and clocks are set one hour back to Sunday, April 4, 2027, 2:00 am02:00. Standard time starts annually on the first Sunday of April.

See Australia daylight saving time and upcoming clock changes worldwide.

Australian Eastern Standard Time (AEST) is used in Queensland, Victoria, Tasmania, New South Wales (except Broken Hill), Australian Capital Territory and in folling major cities Brisbane, Sydney, Melbourne, Hobart, Canberra

Only part of Australia observe daylight saving. It is used in New South Wales, Victoria, South Australia, Tasmania, and the Australian Capital Territory. Daylight saving is not observed in Queensland, Western Australia or the Northern Territory.

AEST representations, usage and related time zones

India Standard Time

Offset: IST is 5 hours and 30 minutes ahead of Greenwich Mean Time (GMT).

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, Bengaluru, Hyderabad, Ahmedabad.

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.

Current time in India: India time now

IST representations, usage and related time zones

New Zealand Standard Time

Offset: NZST is 12 hours ahead of Greenwich Mean Time (GMT).

Countries using this time zone: Antarctica, New Zealand

Principal Cities: The largest city in the NZST time zone is Auckland in New Zealand, with about 1.547 million people. Other major cities in this time zone include Christchurch, Wellington, Hamilton, Tauranga.

Daylight Saving: This is a standard time zone. During summer, some places set clocks forward one hour for daylight saving time and observe New Zealand Daylight Time (NZDT).

End: New Zealand Standard Time (NZST) ended on Sunday, September 27, 2026 at 2:00 am02:00 local time and clocks were set one hour forward to Sunday, September 27, 2026, 3:00 am03:00 local daylight time instead. Standard time ends annually on the last Sunday of September.

Start: New Zealand Standard Time (NZST) starts on Sunday, April 4, 2027 at 3:00 am03:00 local time and clocks are set one hour back to Sunday, April 4, 2027, 2:00 am02:00. Standard time starts annually on the first Sunday of April.

See New Zealand daylight saving time and upcoming clock changes worldwide.

NZST representations, usage and related time zones

Greenwich Mean Time

Offset: GMT is the same as Greenwich Mean Time (GMT).

Countries using this time zone: Antarctica, Burkina Faso, Gambia, Ghana, Greenland, Guernsey, Guinea, Guinea-Bissau, Iceland, Ireland, Isle of Man, Ivory Coast, Jersey, Liberia, Mali, Mauritania, Morocco, Saint Helena, São Tomé and Príncipe, Senegal, Sierra Leone, Togo, United Kingdom, Western Sahara

Principal Cities: The largest city in the GMT time zone is London in the United Kingdom, with about 8.962 million people. Other major cities in this time zone include Abidjan, Bamako, Casablanca, Dakar.

Greenwich Mean Time (GMT) originally referred to the mean solar time at the Royal Observatory in Greenwich, London. It is now often used to refer to Coordinated Universal Time (UTC) when this is viewed as a time zone, and in casual use the two are the same. In the military, GMT is known as Zulu time. Greenwich Mean Time was the same as Universal Time (UT), a standard astronomical concept used in many technical fields, until the introduction of UTC in 1972.

GMT representations, usage and related time zones