San Marcos to London time converter
London is 6 hours ahead of San Marcos. When it is 9:00 AM in San Marcos, it is 3:00 PM in London.
San Marcos CDT
Wednesday, October 21, 2026
London BST
Wednesday, October 21, 2026
11:04 AM in San Marcos, Wednesday, October 21, 2026
San Marcos to London conversion table
Every hour of today in San Marcos and the matching time in London. Light rows are typical working hours (9:00–18:00).
| San Marcos | London |
|---|---|
| 12:00 AM | 6:00 AM |
| 1:00 AM | 7:00 AM |
| 2:00 AM | 8:00 AM |
| 3:00 AM | 9:00 AM |
| 4:00 AM | 10:00 AM |
| 5:00 AM | 11:00 AM |
| 6:00 AM | 12:00 PM |
| 7:00 AM | 1:00 PM |
| 8:00 AM | 2:00 PM |
| 9:00 AM | 3:00 PM |
| 10:00 AM | 4:00 PM |
| 11:00 AM | 5:00 PM |
| 12:00 PM | 6:00 PM |
| 1:00 PM | 7:00 PM |
| 2:00 PM | 8:00 PM |
| 3:00 PM | 9:00 PM |
| 4:00 PM | 10:00 PM |
| 5:00 PM | 11:00 PM |
| 6:00 PM | 12:00 AM+1 day |
| 7:00 PM | 1:00 AM+1 day |
| 8:00 PM | 2:00 AM+1 day |
| 9:00 PM | 3:00 AM+1 day |
| 10:00 PM | 4:00 AM+1 day |
| 11:00 PM | 5:00 AM+1 day |
Best time to call or meet
Both sides are at work from 9:00 AM – 12:00 PM in San Marcos (3:00 PM – 6:00 PM in London).
Daylight saving time and the difference
The difference changes during the year because San Marcos and London switch clocks on different dates:
- Oct 21, 2026 – Oct 24, 2026: +6h
- Oct 24, 2026 – Nov 1, 2026: +5h
- Nov 1, 2026 – Mar 14, 2027: +6h
- Mar 14, 2027 – Mar 27, 2027: +5h
- Mar 27, 2027 – Oct 21, 2027: +6h
Distance
San Marcos and London are 7,955 km (4,943 miles) apart in a straight line.
More conversions
Questions and answers
What is the time difference between San Marcos and London?
London is 6 hours ahead of San Marcos.
What time is it in London when it is 9 AM in San Marcos?
When it is 9:00 AM in San Marcos, it is 3:00 PM in London.
When is the best time to call London from San Marcos?
Both sides are at work from 9:00 AM – 12:00 PM in San Marcos (3:00 PM – 6:00 PM in London).
Does the time difference between San Marcos and London change?
Yes, for part of the year, because daylight saving time starts and ends on different dates or applies on one side only.