Time difference between Dublin and Johannesburg
Johannesburg is 1 hour ahead of Dublin. When it's 9:00 in Dublin, it's 10:00 in Johannesburg.
Johannesburg is 1 hour ahead of Dublin.
On Saturday, 3 October 2026, 09:00 in Dublin is 10:00 in Johannesburg. Dublin is UTC+1; Johannesburg is UTC+2.
The gap through 2026
- 1 Jan – 29 MarJohannesburg is 2 hours ahead of Dublin.
- 29 Mar – 25 OctJohannesburg is 1 hour ahead of Dublin.
- 25 Oct – 31 DecJohannesburg is 2 hours ahead of Dublin.
- Dublin moves its clocks forward on 29 March (UTC → UTC+1).
- Dublin moves its clocks back on 25 October (UTC+1 → UTC).
Dublin to Johannesburg, hour by hour
On Monday 5 October.
| Dublin | Johannesburg |
|---|---|
| 07:00 Early morning | 08:00 Early morning |
| 08:00 Early morning | 09:00 Working hours |
| 09:00 Working hours | 10:00 Working hours |
| 10:00 Working hours | 11:00 Working hours |
| 11:00 Working hours | 12:00 Working hours |
| 12:00 Working hours | 13:00 Working hours |
| 13:00 Working hours | 14:00 Working hours |
| 14:00 Working hours | 15:00 Working hours |
| 15:00 Working hours | 16:00 Working hours |
| 16:00 Working hours | 17:00 Evening |
| 17:00 Evening | 18:00 Evening |
| 18:00 Evening | 19:00 Evening |
| 19:00 Evening | 20:00 Evening |
| 20:00 Evening | 21:00 Evening |
| 21:00 Evening | 22:00 Sleeping hours |
| 22:00 Sleeping hours | 23:00 Sleeping hours |
Daylight saving in 2026
- Dublin moves its clocks forward on Sunday 29 March (UTC → UTC+1).
- Dublin moves its clocks back on Sunday 25 October (UTC+1 → UTC).
- 1 Jan – 29 MarJohannesburg is 2 hours ahead of Dublin.
- 29 Mar – 25 OctJohannesburg is 1 hour ahead of Dublin.
- 25 Oct – 31 DecJohannesburg is 2 hours ahead of Dublin.
Best times for a call
Working hours (09:00–17:00) overlap for 7 hours: 09:00–16:00 in Dublin, which is 10:00–17:00 in Johannesburg.
- Dublin 09:00Working hoursJohannesburg 10:00Working hours
- Dublin 10:00Working hoursJohannesburg 11:00Working hours
- Dublin 11:00Working hoursJohannesburg 12:00Working hours
More time differences for Dublin and Johannesburg
- New York and Johannesburg
- Los Angeles and Johannesburg
- Chicago and Johannesburg
- London and Johannesburg
- Paris and Johannesburg
- Berlin and Johannesburg
- New York and Dublin
- Los Angeles and Dublin
- Chicago and Dublin
- Denver and Dublin
- Denver and Johannesburg
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- Toronto and Johannesburg
- Vancouver and Dublin
- Vancouver and Johannesburg
- Mexico City and Dublin
- Mexico City and Johannesburg
- São Paulo and Dublin
- São Paulo and Johannesburg
- Buenos Aires and Dublin
- Buenos Aires and Johannesburg
- Bogotá and Dublin
- Bogotá and Johannesburg
- London and Dublin
- Dublin and Lisbon
- Dublin and Madrid
- Dublin and Paris
- Dublin and Amsterdam
- Dublin and Brussels
- Dublin and Berlin
- Dublin and Zurich
- Dublin and Rome
How the time difference calculator works
The difference is each city's offset from UTC on the date you pick, subtracted. Offsets come from the IANA time zone database in your browser.
Because countries change their clocks on different dates — or not at all — the gap between two cities can change for a few weeks a year. The calculator lists every change in the year.
Examples
- London is 5 hours ahead of New York for most of the year, but only 4 hours ahead for about three weeks in March and one week in late October.
- Dubai doesn't change its clocks, so its gap to London is 4 hours in winter and 3 hours in summer.
Good for
- Knowing when a colleague's day starts
- Setting expectations for replies across time zones
- Planning travel and jet lag
Frequently asked questions
- What time is it in Johannesburg when it's 9 AM in Dublin?
- 10:00 AM — as of 3 October 2026. Johannesburg is 1 hour ahead of Dublin.
- Does the time difference between Dublin and Johannesburg change?
- Yes. In 2026 it's 2 hours or 1 hour, depending on the date, because only Dublin changes its clocks.
- What's the best time for a call between Dublin and Johannesburg?
- Between 09:00 and 16:00 Dublin time, when both cities are in working hours (09:00–17:00).
- What time zones are Dublin and Johannesburg in?
- Dublin uses Europe/Dublin (UTC+1 today); Johannesburg uses Africa/Johannesburg (UTC+2 today).
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