EST to Cardiff Time Converter
GMT is 5 hours ahead of EST. 9:00 AM EST = 2:00 PM GMT.
GMT is 5 hours ahead of EST at the moment. To convert EST to Cardiff Time, add 5 hours to the EST time: 9:00 AM EST = 2:00 PM GMT.
EST (Eastern Time) is used in New York, Washington DC, Florida, Georgia, Ohio, Michigan, Ontario, Quebec, Panama and Jamaica (all year). Cardiff Time (Cardiff time) is used in Cardiff, UK.
EST to Cardiff Time time conversion table
EST to Cardiff Time on 7 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| EST | Cardiff Time | Day |
|---|---|---|
| 12:00 AM EST | 5:00 AM GMT | night |
| 1:00 AM EST | 6:00 AM GMT | — |
| 2:00 AM EST | 7:00 AM GMT | — |
| 3:00 AM EST | 8:00 AM GMT | — |
| 4:00 AM EST | 9:00 AM GMT | — |
| 5:00 AM EST | 10:00 AM GMT | — |
| 6:00 AM EST | 11:00 AM GMT | — |
| 7:00 AM EST | 12:00 PM GMT | — |
| 8:00 AM EST | 1:00 PM GMT | — |
| 9:00 AM EST | 2:00 PM GMT | work hours |
| 10:00 AM EST | 3:00 PM GMT | work hours |
| 11:00 AM EST | 4:00 PM GMT | work hours |
| 12:00 PM EST | 5:00 PM GMT | — |
| 1:00 PM EST | 6:00 PM GMT | — |
| 2:00 PM EST | 7:00 PM GMT | — |
| 3:00 PM EST | 8:00 PM GMT | — |
| 4:00 PM EST | 9:00 PM GMT | — |
| 5:00 PM EST | 10:00 PM GMT | night |
| 6:00 PM EST | 11:00 PM GMT | night |
| 7:00 PM EST | 12:00 AM GMT | next day |
| 8:00 PM EST | 1:00 AM GMT | next day |
| 9:00 PM EST | 2:00 AM GMT | next day |
| 10:00 PM EST | 3:00 AM GMT | next day |
| 11:00 PM EST | 4:00 AM GMT | next day |
- Work rows — 9 AM–5 PM in both places
- Night in the destination (10 PM–6 AM)
How to convert EST to Cardiff Time
Add 5 hours to the EST time to get Cardiff Time.
Example: 9:00 AM EST = 2:00 PM GMT.
Across midnight: 10:00 PM EST = 3:00 AM GMT (next day). The date changes, so always check the day as well as the hour.
Time difference between EST and Cardiff Time
The time difference between EST and Cardiff Time is not the same all year, because the two sides change for daylight saving time on different dates. In 2026 it works out like this:
- 31 Dec 2025 – 7 Mar 2026: Cardiff Time is 5 hours ahead of EST.
- 8 Mar 2026 – 27 Mar 2026: Cardiff Time is 4 hours ahead of EST.
- 28 Mar 2026 – 23 Oct 2026: Cardiff Time is 5 hours ahead of EST.
- 24 Oct 2026 – 31 Oct 2026: Cardiff Time is 4 hours ahead of EST.
- 1 Nov 2026 – 30 Dec 2026: Cardiff Time is 5 hours ahead of EST.
EST and Cardiff Time during daylight saving time
- EST next changes on 14 Mar 2027: clocks go forward one hour at 01:59 local time, from EST (UTC−5) to EDT (UTC−4).
- Cardiff Time next changes on 28 Mar 2027: clocks go forward one hour at 00:59 local time, from GMT (UTC+0) to BST (UTC+1).
Best time for a meeting between EST and Cardiff Time
EST and Cardiff Time share 3 hours of the 9 AM–5 PM working day. Any time between 9:00 AM and 12:00 PM EST lands between 2:00 PM and 5:00 PM GMT, inside working hours for both.
EST to Cardiff Time FAQ
What is the time difference between EST and Cardiff Time?
Right now GMT is 5 hours ahead of EST. The gap changes 5 times in 2026 because the two sides switch to daylight saving time on different dates.
What is 9 AM EST in Cardiff Time?
9:00 AM EST is 2:00 PM GMT.
What is 12 PM (noon) EST in Cardiff Time?
12:00 PM EST is 5:00 PM GMT.
Is Cardiff Time ahead of or behind EST?
GMT is 5 hours ahead of EST, so it is later in Cardiff Time than in EST.
Does EST change for daylight saving time?
Yes. EST next changes on 14 Mar 2027, when clocks go forward one hour from EST to EDT.
Does Cardiff Time change for daylight saving time?
Yes. Cardiff Time next changes on 28 Mar 2027, when clocks go forward one hour from GMT to BST.
What is the best time for a meeting between EST and Cardiff Time?
EST and Cardiff Time share 3 hours of the 9 AM–5 PM working day. Any time between 9:00 AM and 12:00 PM EST lands between 2:00 PM and 5:00 PM GMT, inside working hours for both.
Is ET the same as EST?
EST is the winter (standard) name of Eastern Time (ET). From March to November the same clocks are called EDT. This converter always uses the one in force on the date you choose.
Related conversions
Convert Cardiff Time to EST
Convert EST to other time zones
Convert other time zones to Cardiff Time
Learn more
Updated 7 November 2026. Time zone data: IANA tz database.