Sunrise and Sunset times in Troedyrhiw, United Kingdom 
Troedyrhiw
Merthyr Tydfil
Time zone: Europe/London, UTC 1 h.
Latitude: 51.7147, Longitude: -3.3433
| Date | Sunrise | Solar Noon | Sunset | Length of day |
|---|---|---|---|---|
| 2025-Jul-01, Tuesday | 04:59:37 | 13:17:19 | 21:35:01 | 16h 35m 24s |
| 2025-Jul-02, Wednesday | 05:00:21 | 13:17:31 | 21:34:40 | 16h 34m 19s |
| 2025-Jul-03, Thursday | 05:01:07 | 13:17:42 | 21:34:16 | 16h 33m 9s |
| 2025-Jul-04, Friday | 05:01:56 | 13:17:52 | 21:33:48 | 16h 31m 52s |
| 2025-Jul-05, Saturday | 05:02:48 | 13:18:03 | 21:33:18 | 16h 30m 30s |
| 2025-Jul-06, Sunday | 05:03:41 | 13:18:13 | 21:32:44 | 16h 29m 3s |
| 2025-Jul-07, Monday | 05:04:37 | 13:18:22 | 21:32:08 | 16h 27m 31s |
| 2025-Jul-08, Tuesday | 05:05:36 | 13:18:32 | 21:31:28 | 16h 25m 52s |
| 2025-Jul-09, Wednesday | 05:06:36 | 13:18:41 | 21:30:45 | 16h 24m 9s |
| 2025-Jul-10, Thursday | 05:07:38 | 13:18:49 | 21:30:00 | 16h 22m 22s |
| 2025-Jul-11, Friday | 05:08:43 | 13:18:57 | 21:29:11 | 16h 20m 28s |
| 2025-Jul-12, Saturday | 05:09:49 | 13:19:05 | 21:28:20 | 16h 18m 31s |
| 2025-Jul-13, Sunday | 05:10:57 | 13:19:12 | 21:27:26 | 16h 16m 29s |
| 2025-Jul-14, Monday | 05:12:07 | 13:19:18 | 21:26:29 | 16h 14m 22s |
| 2025-Jul-15, Tuesday | 05:13:19 | 13:19:24 | 21:25:30 | 16h 12m 11s |
| 2025-Jul-16, Wednesday | 05:14:32 | 13:19:30 | 21:24:28 | 16h 9m 56s |
| 2025-Jul-17, Thursday | 05:15:47 | 13:19:35 | 21:23:23 | 16h 7m 36s |
| 2025-Jul-18, Friday | 05:17:04 | 13:19:40 | 21:22:15 | 16h 5m 11s |
| 2025-Jul-19, Saturday | 05:18:22 | 13:19:44 | 21:21:05 | 16h 2m 43s |
| 2025-Jul-20, Sunday | 05:19:41 | 13:19:47 | 21:19:53 | 16h 0m 12s |
| 2025-Jul-21, Monday | 05:21:02 | 13:19:50 | 21:18:38 | 15h 57m 36s |
| 2025-Jul-22, Tuesday | 05:22:24 | 13:19:52 | 21:17:21 | 15h 54m 57s |
| 2025-Jul-23, Wednesday | 05:23:47 | 13:19:54 | 21:16:01 | 15h 52m 14s |
| 2025-Jul-24, Thursday | 05:25:11 | 13:19:55 | 21:14:39 | 15h 49m 28s |
| 2025-Jul-25, Friday | 05:26:36 | 13:19:56 | 21:13:15 | 15h 46m 39s |
| 2025-Jul-26, Saturday | 05:28:02 | 13:19:56 | 21:11:49 | 15h 43m 47s |
| 2025-Jul-27, Sunday | 05:29:30 | 13:19:55 | 21:10:20 | 15h 40m 50s |
| 2025-Jul-28, Monday | 05:30:58 | 13:19:54 | 21:08:50 | 15h 37m 52s |
| 2025-Jul-29, Tuesday | 05:32:26 | 13:19:52 | 21:07:17 | 15h 34m 51s |
| 2025-Jul-30, Wednesday | 05:33:56 | 13:19:49 | 21:05:43 | 15h 31m 47s |
| 2025-Jul-31, Thursday | 05:35:26 | 13:19:46 | 21:04:06 | 15h 28m 40s |
Troedyrhiw on United Kingdom map:
Cities in the same time zone Europe/London
London (London, City of), Birmingham (Birmingham), Manchester (Manchester), Leeds (Leeds), Sheffield (Sheffield), Glasgow (Glasgow City), Newcastle upon Tyne (Newcastle upon Tyne), Nottingham (Nottingham), Liverpool (Liverpool), Southend-on-Sea (Southend-on-Sea), Bristol (Bristol, City of), Edinburgh (Edinburgh, City of), Brighton (Brighton and Hove), Bradford (Bradford), Leicester (Leicester), Sunderland (Sunderland), Belfast (Belfast), Portsmouth (Portsmouth), Bournemouth (Bournemouth), Middlesbrough (Redcar and Cleveland), Stoke-on-Trent (Stoke-on-Trent), Coventry (Coventry), Southampton (Southampton), Reading (Reading), Kingston upon Hull (Kingston upon Hull, City of), Abertawe (Swansea), Blackpool (Blackpool), Plymouth (Plymouth), Luton (Luton), Oxford (Oxfordshire)
Largest Populated Areas in United Kingdom
London (London, City of), Birmingham (Birmingham), Manchester (Manchester), Leeds (Leeds), Sheffield (Sheffield), Glasgow (Glasgow City), Newcastle upon Tyne (Newcastle upon Tyne), Caerdydd (Cardiff), Nottingham (Nottingham), Liverpool (Liverpool), Southend-on-Sea (Southend-on-Sea), Bristol (Bristol, City of), Edinburgh (Edinburgh, City of), Brighton (Brighton and Hove), Bradford (Bradford), Leicester (Leicester), Sunderland (Sunderland), Belfast (Belfast), Portsmouth (Portsmouth), Bournemouth (Bournemouth), Middlesbrough (Redcar and Cleveland), Stoke-on-Trent (Stoke-on-Trent), Coventry (Coventry), Southampton (Southampton), Reading (Reading), Kingston upon Hull (Kingston upon Hull, City of), Abertawe (Swansea), Blackpool (Blackpool), Plymouth (Plymouth), Luton (Luton)
Daylight Hours FAQ: 10 Most Googled Questions Answered
1. What are daylight hours?
Daylight hours refer to the period between sunrise and sunset. This duration changes throughout the year based on season and geographic location.
2. Why are days shorter in winter and longer in summer?
Earth's 23.5° axial tilt causes uneven sunlight distribution. Your hemisphere receives less direct sunlight in winter (shorter days) and more in summer (longer days).
3. When is the longest day of the year?
Northern Hemisphere: June 20-22 (summer solstice).
Southern Hemisphere: December 21-23.
Near polar circles, the sun doesn't set for 24 hours.
4. When is the shortest day of the year?
Northern Hemisphere: December 21-22 (winter solstice).
Southern Hemisphere: June 20-21.
5. How does latitude affect daylight hours?
The closer to poles, the more extreme variations:
- Equator: ~12-hour days year-round
- Polar regions: Midnight sun/polar nights occur
6. Why do New York and Miami have different day lengths?
Miami's lower latitude means:
- Winter days are longer than NY's
- Summer days are slightly shorter
7. When are day and night equal?
During equinoxes:
- Spring: March 20-21
- Fall: September 22-23
How fast do days lengthen/shorten?
Most rapid change near equinoxes: 2-4 minutes daily.
Slowest change near solstices: <1 minute daily.
9. Where can I check daylight hours for my city?
Reliable tools:
- Timeanddate.com
- SunCalc.org
- Photographer's Ephemeris app
10. Does daylight affect health?
Yes. Reduced winter sunlight may cause:
- Seasonal Affective Disorder (SAD)
- Vitamin D deficiency
Solution: Light therapy lamps & midday walks