World Timezones

Johannesburg to Colombo Converter

Compare Colombo to Johannesburg instead
Johannesburg5:45 amMon, Jun 8
JohannesburgSAST
South Africa · UTC+2
5:45 amMon, Jun 8
12a
1a
2a
3a
4a
5a
6a
7a
8a
9a
10a
11a
12p
1p
2p
3p
4p
5p
6p
7p
8p
9p
10p
11p
ColomboIST
Sri Lanka · UTC+5:30
9:15 amMon, Jun 8
3a
4a
5a
6a
7a
8a
9a
10a
11a
12p
1p
2p
3p
4p
5p
6p
7p
8p
9p
10p
11p
12a
1a
2a

Offset

The time difference between Johannesburg and Colombo is 3.5 hours.

3.5 hours

Johannesburg (SAST) is behind Colombo (IST).

SAST: UTC+2

IST: UTC+5:30

Neither Johannesburg nor Colombo is currently observing daylight saving time.

When to schedule

Business-hours overlap: 9 AM–2 PM in Johannesburg (12 PM–5 PM in Colombo).

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

Suggested time: 11:00 AM Johannesburg (2:30 PM Colombo).

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.

South Africa

  • New Year's DayThu, Jan 1
  • Human Rights DaySat, Mar 21
  • Good FridayFri, Apr 3
  • Family DayMon, Apr 6
  • Freedom DayMon, Apr 27
  • Workers' DayFri, May 1
  • Youth DayTue, Jun 16
  • National Women's DayMon, Aug 10
  • Heritage DayThu, Sep 24
  • Day of ReconciliationWed, Dec 16
  • Christmas DayFri, Dec 25
  • Day of GoodwillSat, Dec 26

About these zones

Johannesburg uses South Africa Time (SAST). To call South Africa, dial +27.

Colombo uses India Standard Time (IST). To call Sri Lanka, dial +94.

Colombo is approximately 4,150 miles northeast of Johannesburg.

Quick reference

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

JohannesburgColomboDay
12:00 am3:30 amSame day
1:00 am4:30 amSame day
2:00 am5:30 amSame day
3:00 am6:30 amSame day
4:00 am7:30 amSame day
5:00 am8:30 amSame day
6:00 am9:30 amSame day
7:00 am10:30 amSame day
8:00 am11:30 amSame day
9:00 am12:30 pmSame day
10:00 am1:30 pmSame day
11:00 am2:30 pmSame day
12:00 pm3:30 pmSame day
1:00 pm4:30 pmSame day
2:00 pm5:30 pmSame day
3:00 pm6:30 pmSame day
4:00 pm7:30 pmSame day
5:00 pm8:30 pmSame day
6:00 pm9:30 pmSame day
7:00 pm10:30 pmSame day
8:00 pm11:30 pmSame day
9:00 pm12:30 am+1 day
10:00 pm1:30 am+1 day
11:00 pm2:30 am+1 day

Daylight saving time

Neither Johannesburg nor Colombo observes daylight saving time. The offset between these zones remains constant year-round.

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

Daylight today

Johannesburg
Sunrise
6:51 AM
Sunset
5:24 PM
Day length
10h 33m
Colombo
Sunrise
5:55 AM
Sunset
6:26 PM
Day length
12h 31m

Daylight overlap: 8h 4m — 6:51 AM–2:56 PM in Johannesburg (10:21 AM–6:26 PM in Colombo). Both locations are in daylight during this window.

Cities in these zones

Other cities in South Africa Time

Browse all cities to see the current local time anywhere.

Airports in these zones

Airports in South Africa Time

  • HLA
  • JNB
  • CPT
  • DUR

Airports in India Standard Time

  • CMB
  • RML

Related conversions

Common conversions

What is 9:00 am Johannesburg in Colombo?
9:00 am Johannesburg is 12:30 pm Colombo.
What is 12:00 pm Johannesburg in Colombo?
12:00 pm Johannesburg is 3:30 pm Colombo.
What is 12:30 pm Johannesburg in Colombo?
12:30 pm Johannesburg is 4:00 pm Colombo.
What is 2:00 pm Johannesburg in Colombo?
2:00 pm Johannesburg is 5:30 pm Colombo.
What is 5:00 pm Johannesburg in Colombo?
5:00 pm Johannesburg is 8:30 pm Colombo.
What is 11:30 pm Johannesburg in Colombo?
11:30 pm Johannesburg is 3:00 am Colombo, the next day.