No working hours on Sat, Apr 24

PDT
UTC−7
Sat, Apr 24
12am
3am
6am
9am
12pm
3pm
6pm
9pm
BST
UTC+1
Sat, Apr 24
8h ahead
12am
3am
6am
9am
12pm
3pm
6pm
9pm
Massachusetts, USAEDT
UTC−4
Sat, Apr 24
3h ahead
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

Selected conversion

1:00 am01:00 PDT (UTC-7), Apr 24, 2021 = 9:00 am09:00 BST (UTC+1), Apr 24, 2021 = 4:00 am04:00 EDT (UTC-4), Apr 24, 2021

PDT is 8 hours behind BST. PDT is 3 hours behind Boston.

How the time difference changes

PDT to BST

For most of the year, PDT is 8 hours behind BST. From Oct 25 to Nov 1, 2026, and from Mar 14 to Mar 28, 2027, PDT is 7 hours behind GMT. From Nov 1, 2026 to Mar 14, 2027, PST is 8 hours behind GMT.

For most of the year, working hours of 9:00 am to 6:00 pm in PDT correspond to 5:00 pm to 2:00 am (next day) in BST. At other times of the year, working hours of 9:00 am to 6:00 pm in PST correspond to 5:00 pm to 2:00 am (next day) in GMT or working hours of 9:00 am to 6:00 pm in PDT correspond to 4:00 pm to 1:00 am (next day) in GMT.For most of the year, working hours of 09:00 to 18:00 in PDT correspond to 17:00 to 02:00 (next day) in BST. At other times of the year, working hours of 09:00 to 18:00 in PST correspond to 17:00 to 02:00 (next day) in GMT or working hours of 09:00 to 18:00 in PDT correspond to 16:00 to 01:00 (next day) in GMT.

PDT to Boston

For most of the year, PDT is 3 hours behind Boston. From Nov 1, 2026 to Mar 14, 2027, PST is 3 hours behind Boston. Briefly around clock changes, PDT is 2 hours behind Boston or PST is 4 hours behind Boston.

For most of the year, working hours of 9:00 am to 6:00 pm in PDT correspond to 12:00 pm to 9:00 pm in Boston. At other times of the year, working hours of 9:00 am to 6:00 pm in PST correspond to 12:00 pm to 9:00 pm in Boston.For most of the year, working hours of 09:00 to 18:00 in PDT correspond to 12:00 to 21:00 in Boston. At other times of the year, working hours of 09:00 to 18:00 in PST correspond to 12:00 to 21:00 in Boston.

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

Time Difference

Pacific Daylight Time is 8 hours behind British Summer Time. Pacific Daylight Time is 3 hours behind EDT (Eastern Daylight Time).
1:00 am01:00 in PDT is 9:00 am09:00 in BST and is 4:00 am04:00 in Boston, MA, USA

PDT to BST call time
Best time for a conference call or a meeting is between 9am-10am09:00-10:00 in PDT which corresponds to 5pm-6pm17:00-18:00 in BST
PDT to Boston call time
Best time for a conference call or a meeting is between 9am-3pm09:00-15:00 in PDT which corresponds to 12pm-6pm12:00-18:00 in Boston

1:00 am01:00 Pacific Daylight Time (PDT). Offset UTC -7:00 hours
9:00 am09:00 British Summer Time (BST). Offset UTC +1:00 hour
4:00 am04:00 EDT (Eastern Daylight Time) (Boston, MA, USA). Offset UTC -4:00 hours

1:00 am01:00 PDT / 9:00 am09:00 BST / 4:00 am04:00 Boston, MA, USA

Choose an hour to update the converter. Day labels such as “next day” or “+1” are relative to the selected date in the first column. Use Up and Down arrow keys, Home or End to move between hours, then Enter or Space to select.

Hourly time comparison
PDTBSTBoston, MA, USA
8:00am3:00am
9:00am4:00am
10:00am5:00am
11:00am6:00am
12:00pm7:00am
1:00pm8:00am
2:00pm9:00am
3:00pm10:00am
4:00pm11:00am
5:00pm12:00pm
6:00pm1:00pm
7:00pm2:00pm
8:00pm3:00pm
9:00pm4:00pm
10:00pm5:00pm
11:00pm6:00pm
12:00am next day7:00pm
1:00am next day8:00pm
2:00am next day9:00pm
3:00am next day10:00pm
4:00am next day11:00pm
5:00am next day12:00am next day
6:00am next day1:00am next day
7:00am next day2:00am next day
08:0003:00
09:0004:00
10:0005:00
11:0006:00
12:0007:00
13:0008:00
14:0009:00
15:0010:00
16:0011:00
17:0012:00
18:0013:00
19:0014:00
20:0015:00
21:0016:00
22:0017:00
23:0018:00
00:00 next day19:00
01:00 next day20:00
02:00 next day21:00
03:00 next day22:00
04:00 next day23:00
05:00 next day00:00 next day
06:00 next day01:00 next day
07:00 next day02:00 next day

Pacific Daylight Time

Offset: PDT is 7 hours behind Greenwich Mean Time (GMT).

Countries using this time zone: Canada, Mexico, United States

Principal Cities: The largest city in the PDT time zone is Los Angeles in the United States, with about 3.821 million people. Other major cities in this time zone include Tijuana, San Diego, Mexicali, San Jose.

French: HAP - Heure Avancée du Pacifique

Spanish: PT - Zona Noroeste

Map of the areas on Pacific Daylight Time (PDT)
PDT part of the year

On April 24, 2021 all shaded areas are on PDT.

Daylight Saving: Pacific Daylight Time (PDT) is a daylight saving/summer time zone. During winter, some places set clocks back one hour and observe Pacific Standard Time (PST).

123456789101112Start: Pacific Daylight Time (PDT) started on Sunday, March 14, 2021 at 2:00 am02:00 local time and clocks were set one hour forward to Sunday, March 14, 2021, 3:00 am03:00. Daylight saving starts annually on the second Sunday of March.

123456789101112End: Pacific Daylight Time (PDT) ends on Sunday, November 7, 2021 at 2:00 am02:00 local time and clocks are set one hour back to Sunday, November 7, 2021, 1:00 am01:00 local standard time instead. Daylight saving ends annually on the first Sunday of November.

See upcoming clock changes worldwide.

PDT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -07 - basic short
  • -0700 - basic
  • -07:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -0700 - sign character (-) followed by a four digit time providing hours (07) and minutes (00) of the offset. Indicates an offset of seven hours to the west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Tango - Military abbreviation for PDT
  • T - short form of 'Tango'
IANA/Olson: Reflects PDT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • America/Ensenada
  • America/Los_Angeles
  • America/Santa_Isabel
  • America/Tijuana
  • America/Vancouver
  • Canada/Pacific
  • Mexico/BajaNorte
  • PST8PDT
  • US/Pacific
Time zones with the GMT -7 offset:
  • MST - Mountain Standard Time
  • PDT - Pacific Daylight Time
  • YST - Yukon Standard Time
  • T - Tango Time Zone

British Summer Time

Offset: BST is 1 hour ahead of Greenwich Mean Time (GMT).

Countries using this time zone: Britain (UK), Guernsey, Isle of Man, Jersey

Principal Cities: The largest city in the BST time zone is London in the United Kingdom, with about 8.962 million people. Other major cities in this time zone include Birmingham, Glasgow, Manchester, Sheffield.

Map of the areas on British Summer Time (BST)
BST part of the year

On April 24, 2021 all shaded areas are on BST.

Daylight Saving: British Summer Time (BST) is a daylight saving/summer time zone. During winter, some places set clocks back one hour and observe Greenwich Mean Time (GMT).

123456789101112Start: British Summer Time (BST) started on Sunday, March 28, 2021 at 1:00 am01:00 local time and clocks were set one hour forward to Sunday, March 28, 2021, 2:00 am02:00. Daylight saving starts annually on the last Sunday of March.

123456789101112End: British Summer Time (BST) ends on Sunday, October 31, 2021 at 2:00 am02:00 local time and clocks are set one hour back to Sunday, October 31, 2021, 1:00 am01:00 local standard time instead. Daylight saving ends annually on the last Sunday of October.

See upcoming clock changes worldwide.

BST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +01 - basic short
  • +0100 - basic
  • +01:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0100 - sign character (+) followed by a four digit time providing hours (01) and minutes (00) of the offset. Indicates an offset of one hour to the east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Alpha - Military abbreviation for BST
  • A - short form of 'Alpha'
IANA/Olson: Reflects BST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Europe/Belfast
  • Europe/Guernsey
  • Europe/Isle_of_Man
  • Europe/Jersey
  • Europe/London
  • GB
  • GB-Eire
BST Abbreviation: Several time zones share BST abbreviation and it could refer to these time zones
  • British Summer Time - UTC +1
  • Bangladesh Standard Time - UTC +6
  • Bougainville Standard Time - UTC +11
Time zones with the GMT +1 offset:
  • BST - British Summer Time
  • CET - Central European Time
  • IST - Irish Standard Time
  • WEST - Western European Summer Time
  • A - Alpha Time Zone
  • CET - Central European Time
  • MEZ - Mitteleuropäische Zeit
  • WAT - West Africa Time
  • WST - Western Sahara Summer Time
  • BMT - Biel Mean Time

Boston Time Zone and Facts

Time Zone

Abbreviation / Offset
EDT – Eastern Daylight Time, UTC-4 (now, daylight saving time)
EST – Eastern Standard Time, UTC-5 (standard time)
Daylight Saving Time Ends
123456789101112Sunday, November 1, 2026 at 2:00 amSunday, November 1, 2026 at 02:00: clocks go back 1 hour to 1:00 am01:00 (EST). DST ends on the 1st Sunday of November each year. Also called Fall Back or Winter Time.
Daylight Saving Time Starts
123456789101112Sunday, March 14, 2027 at 2:00 amSunday, March 14, 2027 at 02:00: clocks go forward 1 hour to 3:00 am03:00 (EDT). DST starts on the 2nd Sunday of March each year. Also called Spring Forward or Summer Time.

Boston Facts

Country
USA
State
Massachusetts
Alternative Names
BOS, Baston, Bostan, Boston, Bostona, Bostonas, Bostone, Bostonia, Bostono, Bostons, Bostun, Bostún, Mushauwomuk, Old Boston, Po-su-tun, Pokekona, Pô-sṳ-tun, Shawmut, Shawmutt, Shawnnut, Totant, Tramount, Tremont, Trimountain, Trimountaine, Vostoni, Wahstoronon:ke, Wahstoronòn:ke, Wastok, bastan, bastana, bausatana, beasrraൺ, bo shi dun, boseuteon, bostan, bostana, bostʼoni, bosuton, bwstn, bwstwn, bxstan, pastan, Βοστωνη, Βοστώνη, Бостан, Бостон, Бостън, Բոստոն, באסטאן, בוסטון, بوستون, بوسطن, بوسٹن, بۆستن, ܒܘܣܛܘܢ, बस्तन, बास्टन्, बॉस्टन, बोस्टन, বস্টন, ਬੌਸਟਨ, பாஸ்டன், బోస్టన్, ಬಾಸ್ಟನ್, ബോസ്റ്റൺ, บอสตัน, བོ་སེ་ཊོན།, ဘော့စတွန်မြို့, ბოსტონი, ቦስቶን, ボストン, 波士頓, 波士顿, 보스턴
Population
653,833
Currency
Dollar (USD)
Geographic Coordinates
42° 21' N Latitude / 71° 03' W Longitude
International Dialing Code
+1