World Timezones

Glasgow to Istanbul Converter

Compare Istanbul to Glasgow instead
Glasgow10:29 pmSat, Jul 18
GlasgowBST
SCT, United Kingdom · UTC+1
10:29 pmSat, Jul 18
12a
1a
2a
3a
4a
5a
6a
7a
8a
9a
10a
11a
12p
1p
2p
3p
4p
5p
6p
7p
8p
9p
10p
11p
IstanbulTRT
Turkey · UTC+3
12:29 amSun, Jul 19
2a
3a
4a
5a
6a
7a
8a
9a
10a
11a
12p
1p
2p
3p
4p
5p
6p
7p
8p
9p
10p
11p
12a
1a

Offset

The time difference between Glasgow and Istanbul is 2 hours.

2 hours

Glasgow (BST) is behind Istanbul (TRT).

BST: UTC+1

TRT: UTC+3

Glasgow is currently observing daylight saving time; Istanbul is not.

When to schedule

Business-hours overlap: 9 AM–3 PM in Glasgow (11 AM–5 PM in Istanbul).

Both teams are in working hours during this window on weekdays.

Suggested time: 12:00 PM Glasgow (2:00 PM Istanbul).

This window may shift by an hour during daylight saving time.

Public holidays in 2026

National public holidays can affect availability — a counterpart is likely off work on their own holidays, so it's worth planning meetings and deadlines around them.

United Kingdom

  • Good FridayFri, Apr 3
  • Early May Bank HolidayMon, May 4
  • Spring Bank HolidayMon, May 25
  • Christmas DayFri, Dec 25
  • St. Stephen's DayMon, Dec 28

Turkey

  • New Year's DayThu, Jan 1
  • National Independence & Children's DayThu, Apr 23
  • Labour DayFri, May 1
  • Atatürk Commemoration & Youth DayTue, May 19
  • Democracy and National Unity DayWed, Jul 15
  • Victory DaySun, Aug 30
  • Republic DayThu, Oct 29

About these zones

Glasgow uses Greenwich Mean Time (GMT, or BST). To call United Kingdom, dial +44.

Istanbul uses Turkey Time (TRT). To call Turkey, dial +90.

Istanbul is approximately 1,800 miles east of Glasgow.

Quick reference

Full 24-hour conversion table — tap any time to open it in the converter.

GlasgowIstanbulDay
12:00 am2:00 amSame day
1:00 am3:00 amSame day
2:00 am4:00 amSame day
3:00 am5:00 amSame day
4:00 am6:00 amSame day
5:00 am7:00 amSame day
6:00 am8:00 amSame day
7:00 am9:00 amSame day
8:00 am10:00 amSame day
9:00 am11:00 amSame day
10:00 am12:00 pmSame day
11:00 am1:00 pmSame day
12:00 pm2:00 pmSame day
1:00 pm3:00 pmSame day
2:00 pm4:00 pmSame day
3:00 pm5:00 pmSame day
4:00 pm6:00 pmSame day
5:00 pm7:00 pmSame day
6:00 pm8:00 pmSame day
7:00 pm9:00 pmSame day
8:00 pm10:00 pmSame day
9:00 pm11:00 pmSame day
10:00 pm12:00 am+1 day
11:00 pm1:00 am+1 day

Daylight saving time

Glasgow observes daylight saving time; Istanbul does not. The offset between the two zones changes when Glasgow transitions: on Sunday, October 25, 2026, clocks fall back from BST to GMT.

See the daylight saving time page for transition dates across every time zone.

Daylight today

Glasgow
Sunrise
4:58 AM
Sunset
9:50 PM
Day length
16h 52m
Istanbul
Sunrise
5:49 AM
Sunset
8:34 PM
Day length
14h 45m

Cities in these zones

Other cities in Greenwich Mean Time

Browse all cities to see the current local time anywhere.

Airports in these zones

Airports in Greenwich Mean Time

  • LCY
  • LGW
  • LHR
  • LTN
  • STN
  • BHX
  • EMA
  • GLA
  • PIK
  • LBA

Airports in Turkey Time

  • IST
  • SAW
  • ESB
  • YEI
  • ADB
  • GZT
  • DIY
  • ADA
  • COV
  • ASR

Related conversions

Common conversions

What is 9:00 am Glasgow in Istanbul?
9:00 am Glasgow is 11:00 am Istanbul.
What is 12:00 pm Glasgow in Istanbul?
12:00 pm Glasgow is 2:00 pm Istanbul.
What is 12:30 pm Glasgow in Istanbul?
12:30 pm Glasgow is 2:30 pm Istanbul.
What is 2:00 pm Glasgow in Istanbul?
2:00 pm Glasgow is 4:00 pm Istanbul.
What is 5:00 pm Glasgow in Istanbul?
5:00 pm Glasgow is 7:00 pm Istanbul.
What is 11:30 pm Glasgow in Istanbul?
11:30 pm Glasgow is 1:30 am Istanbul, the next day.