PT/PDT
Pacific Time
GMT -7
NZST/NZDT
New Zealand Standard Time
GMT +12
NZDT automatically adjusted to NZST time zone, that is in use
EDT/EST
Eastern Daylight Time
GMT -4
EST automatically adjusted to EDT time zone, that is in use
IST
India Standard Time
GMT +5:30

Time Difference

Pacific Daylight Time is 19 hours behind New Zealand Standard Time and 3 hours behind Eastern Daylight Time and 12 hours and 30 minutes behind India Standard Time
3:30 pm15:30 in PDT is 10:30 am10:30 in NZST and is 6:30 pm18:30 in EDT and is 4:00 am04:00 in IST

PT to NZDT call time
Best time for a conference call or a meeting is between 2:30am-4:30am in PT which corresponds to 11:30pm-1:30pm in NZDT
PT to EST call time
Best time for a conference call or a meeting is between 8am-3pm in PT which corresponds to 11am-6pm in EST
PT to IST call time
Best time for a conference call or a meeting is between 6am-8am in PT which corresponds to 7:30pm-9:30pm in IST

3:30 pm15:30 Pacific Daylight Time (PDT). Offset UTC -7:00 hours
10:30 am10:30 New Zealand Standard Time (NZST). Offset UTC +12:00 hours
6:30 pm18:30 Eastern Daylight Time (EDT). Offset UTC -4:00 hours
4:00 am04:00 India Standard Time (IST). Offset UTC +5:30 hours

3:30 pm15:30 PDT / 10:30 am10:30 NZST / 6:30 pm18:30 EDT / 4:00 am04:00 IST

PT NZST EDT IST
12am (midnight) 7pm 3am 12:30 pm
1am 8pm 4am 1:30 pm
2am 9pm 5am 2:30 pm
3am 10pm 6am 3:30 pm
4am 11pm 7am 4:30 pm
5am 12am (midnight) 8am 5:30 pm
6am 1am 9am 6:30 pm
7am 2am 10am 7:30 pm
8am 3am 11am 8:30 pm
9am 4am 12pm (noon) 9:30 pm
10am 5am 1pm 10:30 pm
11am 6am 2pm 11:30 pm
12pm (noon) 7am 3pm 12:30 am
1pm 8am 4pm 1:30 am
2pm 9am 5pm 2:30 am
3pm 10am 6pm 3:30 am
4pm 11am 7pm 4:30 am
5pm 12pm (noon) 8pm 5:30 am
6pm 1pm 9pm 6:30 am
7pm 2pm 10pm 7:30 am
8pm 3pm 11pm 8:30 am
9pm 4pm 12am (midnight) 9:30 am
10pm 5pm 1am 10:30 am
11pm 6pm 2am 11:30 am
0:00 19:00 3:00 12:30
1:00 20:00 4:00 13:30
2:00 21:00 5:00 14:30
3:00 22:00 6:00 15:30
4:00 23:00 7:00 16:30
5:00 0:00 8:00 17:30
6:00 1:00 9:00 18:30
7:00 2:00 10:00 19:30
8:00 3:00 11:00 20:30
9:00 4:00 12:00 21:30
10:00 5:00 13:00 22:30
11:00 6:00 14:00 23:30
12:00 7:00 15:00 0:30
13:00 8:00 16:00 1:30
14:00 9:00 17:00 2:30
15:00 10:00 18:00 3:30
16:00 11:00 19:00 4:30
17:00 12:00 20:00 5:30
18:00 13:00 21:00 6:30
19:00 14:00 22:00 7:30
20:00 15:00 23:00 8:30
21:00 16:00 0:00 9:30
22:00 17:00 1:00 10:30
23:00 18:00 2:00 11:30

Pacific Time

Pacific Time (PT) is a general term used to describe the areas that observe either the Pacific Standard Time (PST) or Pacific Daylight Time (PDT) in the United States and Canada. PT also called Pacific Coast Time. PT is not static but switches between PDT and PST.

Territories observing the Pacific Time Zone are primarily in North America. It runs through the western part of Canada, the United States and the Northwestern part of Mexico.

Countries: It is used in following countries: Canada, Mexico, United States.

Principal Cities: The largest city in the PST timezone is Los Angeles from USA with population about 3.793 million people. Other major cities in the area are Vancouver, Tijuana, San Diego, San Jose.

French: HNP - Heure Normale du Pacifique

Spanish: PT - Tiempo del Pacífico, PT - Zona Noroeste

Pacific Time (PT) is a general term used to describe the areas that observe either the Pacific Standard Time (PST) or Pacific Daylight Time (PDT) in the United States and Canada. PT also called Pacific Coast Time. PT is not static but switches between PDT and PST.

Territories observing the Pacific Time Zone are primarily in North America. It runs through the western part of Canada, the United States and the Northwestern part of Mexico.

Countries: It is used in following countries: Canada, Mexico, United States.

Principal Cities: The largest city in the PST timezone is Los Angeles from USA with population about 3.793 million people. Other major cities in the area are Vancouver, Tijuana, San Diego, San Jose.

French: HNP - Heure Normale du Pacifique

Spanish: PT - Tiempo del Pacífico, PT - Zona Noroeste

PT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -08 - basic short
  • -0800 - basic
  • -08:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -0800 - sign character (-) followed by a four digit time providing hours (08) and minutes (00) of the offset. Indicates eight hour and zero minutes time differences to the west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Uniform - Military abbreviation for PT
  • U - short form of 'Uniform'
PT Abbreviation: Several time zones share PT abbreviation and it could refer to these time zones
  • Pacific Time - UTC -8
  • Ponape Time - UTC +11
Time zones with the GMT -8 offset:
  • AKDT - Alaska Daylight Time
  • PST - Pacific Standard Time
  • PT - Pacific Time
  • PST - Pitcairn Standard Time
  • U - Uniform Time Zone

New Zealand Daylight Time

Offset: NZDT is 13 hours ahead Greenwich Mean Time (GMT) and is used in Pacific

Countries: It is used in following countries: Antarctica, New Zealand

Principal Cities: The largest city in the NZDT timezone is Auckland from New Zealand with population about 1.535 million people. Other major cities in the area are Wellington, Christchurch, Hamilton, Tauranga

NZDT Time Zone Geo Map
NZDT timezone map

Daylight Saving: New Zealand Daylight Time (NZDT) is a daylight saving/summer time zone, however during winter some places adjust time for one hour back and observe New Zealand Standard Time (NZST).

Daylight saving time clock moves back for one hour from 3am to 2amEnd: New Zealand Daylight Time (NZDT) has ended on Sunday, April 6, 2025 at 3:00 am local time and clocks were set one hour back to Sunday, April 6, 2025, 2:00 am local standard time instead. Daylight saving ends annually the on first Sunday of April

Daylight saving time clock moves forward for one hour from 2am to 3amStart: New Zealand Daylight Time (NZDT) starts on Sunday, September 28, 2025 at 2:00 am local time and clocks are set one hour forward to Sunday, September 28, 2025, 3:00 am. Daylight saving starts annually the on last Sunday of September

NZDT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +13 - basic short
  • +1300 - basic
  • +13:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +1300 - sign character (+) followed by a four digit time providing hours (13) and minutes (00) of the offset. Indicates thirteen hour and zero minutes time differences to the east of the zero meridian.
IANA/Olson: Reflects NZDT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Antarctica/McMurdo
  • Antarctica/South_Pole
  • NZ
  • Pacific/Auckland
Time zones with the GMT +13 offset:
  • FJST - Fiji Summer Time
  • NZDT - New Zealand Daylight Time
  • PHOT - Phoenix Island Time
  • TKT - Tokelau Time
  • TOT - Tonga Time
  • WST - West Samoa Time
  • WSST - West Samoa Standard Time

Eastern Standard Time

Offset: EST is 5 hours behind Greenwich Mean Time (GMT) and is used in North America

Countries: It is used in following countries: Bahamas, Canada, Haiti, Jamaica, Cayman Islands, Mexico, Panama, Turks & Caicos Is, United States

Principal Cities: The largest city in the EST timezone is New York City from USA with population about 8.175 million people. Other major cities in the area are Toronto, Montreal, Brooklyn, Borough of Queens

French: HNE - Heure Normale de l'Est

Spanish: ET - Tiempo del Este, ET - Zona Sureste

EST Time Zone Geo Map
EST 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 Eastern Daylight Time (EDT).

Daylight saving time clock moves forward for one hour from 2am to 3amEnd: Eastern Standard Time (EST) has ended on Sunday, March 9, 2025 at 2:00 am local time and clocks were set one hour forward to Sunday, March 9, 2025, 3:00 am local daylight time instead. Standard time ends annually the on second Sunday of March.

Daylight saving time clock moves back for one hour from 2am to 1amStart: Eastern Standard Time (EST) starts on Sunday, November 2, 2025 at 2:00 am local time and clocks are set one hour back to Sunday, November 2, 2025, 1:00 am. Standard time starts annually the on first Sunday of November.

EST 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 five hour and zero minutes time differences to the west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Romeo - Military abbreviation for EST
  • R - short form of 'Romeo'
IANA/Olson: Reflects EST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • America/Atikokan
  • America/Cancun
  • America/Cayman
  • America/Coral_Harbour
  • America/Detroit
  • America/Fort_Wayne
  • America/Grand_Turk
  • America/Indiana/Indianapolis
  • America/Indiana/Marengo
  • America/Indiana/Petersburg
  • America/Indiana/Vevay
  • America/Indiana/Vincennes
  • America/Indiana/Winamac
  • America/Indianapolis
  • America/Iqaluit
  • America/Jamaica
  • America/Kentucky/Louisville
  • America/Kentucky/Monticello
  • America/Louisville
  • America/Montreal
  • America/Nassau
  • America/New_York
  • America/Nipigon
  • America/Panama
  • America/Pangnirtung
  • America/Port-au-Prince
  • America/Thunder_Bay
  • America/Toronto
  • Canada/Eastern
  • EST
  • EST5EDT
  • Jamaica
  • US/East-Indiana
  • US/Eastern
  • US/Michigan
Time zones with the GMT -5 offset:
  • CDT - Central Daylight Time
  • EST - Eastern Standard Time
  • ET - Eastern Time
  • COT - Colombia Time
  • CST - Cuba Standard Time
  • EASST - Easter Island Summer Time
  • ECT - Ecuador Time
  • PET - Peru Time
  • R - Romeo Time Zone

India Standard Time

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

Countries: It is used in following countries: India

Principal Cities: The largest city in the IST timezone is Mumbai from India with population about 12.692 million people. Other major cities in the area are Delhi, Bangalore, Kolkata, Chennai

Daylight Saving: India Standard Time (IST) is not adjusted for daylight saving therefore IST remains the same through out the year. This means, unlike some time zones where the clock is set forward by one hour every summer and backward by one hour during winter to adjust for daylight saving, India Standard Time remains the same

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 five hour and thirty minutes time differences 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
  • Iran Standard Time - UTC +3:30