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D
Delta Time Zone
GMT +4
12am
3am
6am
9am
12pm
3pm
6pm
9pm
ET/EDT
Eastern Time
GMT -4
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

Selected conversion

4:00 pm16:00 D (UTC+4), Oct 3, 2026 = 8:00 am08:00 EDT (UTC-4), Oct 3, 2026

D is 8 hours ahead of EDT.

How the time difference changes

For most of the year, D is 8 hours ahead of ET. At other times of the year, D is 9 hours ahead of ET.

For most of the year, working hours of 9:00 am to 5:00 pm in D correspond to 1:00 am to 9:00 am in ET. At other times of the year, working hours of 9:00 am to 5:00 pm in D correspond to 12:00 am to 8:00 am in ET.For most of the year, working hours of 09:00 to 17:00 in D correspond to 01:00 to 09:00 in ET. At other times of the year, working hours of 09:00 to 17:00 in D correspond to 00:00 to 08:00 in ET.

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

Time Difference

Delta Time Zone is 8 hours ahead of Eastern Daylight Time.
4:00 pm16:00 in D is 8:00 am08:00 in EDT

D to EDT call time
Best time for a conference call or a meeting is between 4:30pm-5:30pm16:30-17:30 in D which corresponds to 8:30am-9:30am08:30-09:30 in EDT

4:00 pm16:00 Delta Time Zone (D). Offset UTC +4:00 hours
8:00 am08:00 Eastern Daylight Time (EDT). Offset UTC -4:00 hours

4:00 pm16:00 D / 8:00 am08:00 EDT

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

Delta Time Zone

Offset: D is 4 hours ahead Greenwich Mean Time (GMT) and is used in Military

Daylight Saving: Clocks in Delta Time Zone (D) do not change for daylight saving time, so D stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter; see upcoming clock changes worldwide.

D 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 D
  • D - short form of 'Delta'
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

Eastern Time

Eastern Time (ET) is a general term used to describe the areas that observe either the Eastern Standard Time (EST) or Eastern Daylight Time (EDT) in the United States and Canada. ET is not static but switches between EDT and EST.

ET is also used somewhat as a de facto official time for all of the United States because it encompasses 17 U.S. states in the eastern part of the contiguous United States including the capital city Washington D.C., the most populous city New York and half of the country’s population.

In the United States nationally televised programs, evening newscasts, talent and awards shows, and any other nationally televised event that airs live on American television during prime time and on the weekends are broadcast live in the Eastern Time Zone. Major professional sports leagues MLB, NBA, NFL and NHL also provide their game times in Eastern Time, even if teams are from outside of Eastern Time.

Countries using this time zone: Bahamas, Canada, Haiti, Jamaica, Cayman Islands, Mexico, Panama, Turks & Caicos Is, United States.

Principal Cities: The largest city in the EST time zone is New York City in the United States, with about 8.175 million people. Other major cities in this time zone include Toronto, Montreal, Brooklyn, Borough of Queens.

French: HNE - Heure Normale de l'Est

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

ET 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 an offset of five hours to the west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Romeo - Military abbreviation for ET
  • R - short form of 'Romeo'
ET Abbreviation: Several time zones share ET abbreviation and it could refer to these time zones
  • Eastern Time - UTC -5
  • Tiempo del Este - UTC -5
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