Current time in Ciudad Lerdo
Current time
America/Monterrey · CST (UTC-06:00)
Neighbouring days
- Previous day
- Today
- Next day
Sunrise and sunset
- Sunrise
- 06:42
- Sunset
- 18:52
- Solar noon
- 12:47
- Daylight
- 12 h 11 min
- Night
- 11 h 49 min
The local date has changed — reload the page for the new sunrise and sunset.
Today and the next four days
| Date | Sunrise | Sunset | Daylight | Change |
|---|---|---|---|---|
| 06:42 | 18:52 | 12 h 11 min | ||
| 06:42 | 18:51 | 12 h 9 min | -1 min 29 s | |
| 06:42 | 18:50 | 12 h 8 min | -1 min 29 s | |
| 06:43 | 18:49 | 12 h 6 min | -1 min 29 s | |
| 06:43 | 18:48 | 12 h 5 min | -1 min 30 s |
Twilight
| Kind | Begins (morning) | Ends (evening) |
|---|---|---|
| Civil twilight (daylight begins / ends) | 06:19 | 19:15 |
| Nautical twilight | 05:52 | 19:42 |
| Astronomical twilight | 05:25 | 20:09 |
Civil twilight is the period when the sun is within 6 degrees below the horizon — bright enough to see outdoors without lights, and what people usually mean by “it gets light” and “it gets dark”. Nautical uses 12 degrees and astronomical 18 degrees. At high latitudes a band can be absent for a whole day, in which case the row is left blank.
Longest and shortest days in 2026
- Longest day
- 13 h 44 min (21 June 2026)
- Shortest day
- 10 h 33 min (21 December 2026)
Computed from the coordinates of Ciudad Lerdo: 25.53718, -103.52456.
Sunrise and sunset are the moments when the centre of the sun is 50 arcminutes below the horizon, which accounts for atmospheric refraction and the sun’s apparent radius — the same convention as common astronomical almanacs. Daylight is sunset minus sunrise; night is taken as 24 hours minus daylight. Elevation, terrain and local weather are not included, so observed times can differ by a minute or two.
Zone details
Daylight saving
Ciudad Lerdo does not observe daylight saving and stays on UTC-06:00 all year.
This moment in other formats
| Unix timestamp | 1789957403 |
|---|---|
| ISO 8601 | 2026-09-20T20:23:23-06:00 |
| ISO week | 2026-W38 |
| Day of the year | day 263 of 365 |
| Days left this year | 102 days |
These values update with the clock above and use the local date in Ciudad Lerdo.
Difference from a reference city
Ciudad Lerdo is 7 hours behind London.
still the previous day
Working-hours overlap with London
About 2 h of overlap each day.
- Ciudad Lerdo 09:00–11:00 matches London 16:00–18:00
Working hours are taken as 09:00–18:00 local on each side, using the offsets for today.
Hour-by-hour conversion
Calculated for 2026-09-20 local time in Ciudad Lerdo. The two places start and end daylight saving on different dates, so another day can give a different result.
| Ciudad Lerdo (source) | London (target) |
|---|---|
| 00:00 | 07:00 |
| 01:00 | 08:00 |
| 02:00 | 09:00 |
| 03:00 | 10:00 |
| 04:00 | 11:00 |
| 05:00 | 12:00 |
| 06:00 | 13:00 |
| 07:00 | 14:00 |
| 08:00 | 15:00 |
| 09:00 | 16:00 |
| 10:00 | 17:00 |
| 11:00 | 18:00 |
| 12:00 | 19:00 |
| 13:00 | 20:00 |
| 14:00 | 21:00 |
| 15:00 | 22:00 |
| 16:00 | 23:00 |
| 17:00 | 00:00 next day |
| 18:00 | 01:00 next day |
| 19:00 | 02:00 next day |
| 20:00 | 03:00 next day |
| 21:00 | 04:00 next day |
| 22:00 | 05:00 next day |
| 23:00 | 06:00 next day |
Other cities in Mexico
- Mexico City 20:23
- Tijuana 19:23
- Iztapalapa 20:23
- León de los Aldama 20:23
- Ecatepec de Morelos 20:23
- Santiago de Querétaro 20:23
- Ciudad Juárez 20:23
- Zapopan 20:23
- Guadalajara 20:23
- Mérida 20:23
- Gustavo Adolfo Madero 20:23
- Monterrey 20:23
Cities also on America/Monterrey
- Monterrey 20:23
- Torreón 20:23
- Saltillo 20:23
- Guadalupe 20:23
- Victoria de Durango 20:23
- Ciudad Apodaca 20:23
- San Nicolás de los Garza 20:23
- Ciudad General Escobedo 20:23
How to use this page
The top of the page shows the current date and time in Ciudad Lerdo, ticking in the America/Monterrey zone. To convert a specific moment to another city, use the comparison link below, where you can enter a date and time.
How the time is calculated
Ciudad Lerdo is bound to the IANA identifier America/Monterrey. The server resolves the UTC offset and daylight saving state for the requested moment and renders the first view; the browser then keeps time in the same zone and re-syncs when the tab comes back to the foreground. No fixed offset stands in for the zone, and no zone is guessed from the city name.
FAQ
- Which time zone is Ciudad Lerdo in?
- Ciudad Lerdo uses the IANA identifier America/Monterrey, currently UTC-06:00. The same identifier can have different offsets on different dates; the value above is for the current moment.
- Does Ciudad Lerdo observe daylight saving time?
- The daylight saving section above answers this from the IANA database: cities that do not observe it show no changeover text, and cities that do show the current state and the next local changeover time.
- What time are sunrise and sunset in Ciudad Lerdo today?
- The sunrise and sunset section above gives today’s sunrise, sunset and solar noon along with the length of daylight and night, plus how they change over the next four days. Times are computed from the coordinates of Ciudad Lerdo in the America/Monterrey zone; at high latitudes sunrise or sunset can fall on the adjacent date, which the page marks explicitly.
- How many hours is Ciudad Lerdo from London?
- Calculated for the current moment: Ciudad Lerdo is 7 hours behind London. The section above also shows each side’s local date at that same instant. Because the two places start and end daylight saving on different dates, the gap changes during the year — use the fixed-date mode in the comparison tool for another date.
- Can a cached page show the wrong time?
- No. The first render uses server time as a starting value, and as soon as the page loads the browser recomputes the current moment for America/Monterrey and takes over the clock, so a cache hit still shows the time at which you opened it.