Old Saint Marys in numbers
- Coordinates
- 28.1020, -97.2089
- Elevation
- 6 m above sea level
- Region
- Texas
- Country
- United States, North America
- Capital
- Washington, D.C. — 2214 km away
What time is it in Old Saint Marys, Texas, United States
The time in Old Saint Marys, Texas, United States at this very moment is shown below, in the America/Chicago zone (−5).
Old Saint Marys, United States
Friday, 16 October 2026
UTC−5 · America/Chicago
Local time in Old Saint Marys
UTC−5 · daylight saving time is active
Old Saint Marys keeps America/Chicago clock_time.
The sun today
Sunrise 7:31 AM Solar noon 1:15 PM Sunset 7:00 PM Daylight 11 h 29 min Night 12 h 31 min Civil twilight 7:07 AM – 7:24 PM
Weather in Old Saint Marys right now
Loading the current weather…
Weather data by Open-Meteo, updated every 30 minutes.
Old Saint Marys and its neighbours
Postal codes
- 78340 Bayside — 0.6 km away
- 78381 Rockport — 15.0 km away
Postal codes come from the free GeoNames dataset. Where a code is listed with a distance, it belongs to a nearby settlement — GeoNames spells that name differently from ours.
Largest cities in Texas
- Houston 2 314 157
- San Antonio 1 526 656
- Dallas 1 326 087
- Fort Worth 1 008 106
- Austin 974 447
- El Paso 678 815
Same time zone — America/Chicago
- Chicago United States
- Houston United States
- San Antonio United States
- Dallas United States
- Fort Worth United States
- Austin United States
Nearby places
- Bayside — 0.7 km
- Black Point (historical) — 5.3 km
- Bayview Estates Colonia — 9.8 km
- Bonnie View — 11.5 km
- Tradewinds Estates Colonia — 13.4 km
- Tradewinds — 13.4 km
Time and daylight in Old Saint Marys
Postal service in Old Saint Marys uses 2 codes.
Old Saint Marys sets its clocks by America/Chicago, which runs UTC−5. Daylight saving time here: Yes.
The horizon brightens over Old Saint Marys at 7:31 AM, and the sun sets at 7:00 PM. Daylight runs 11 h 29 min.
Time in Old Saint Marys applies without change in Bayside and Black Point (historical) nearby.
Questions and answers
- What time zone governs the clock in Old Saint Marys?
- The clock in Old Saint Marys follows America/Chicago, with an offset of −5.
- Does Old Saint Marys have a daylight saving period?
- Daylight saving in Old Saint Marys: Yes.
- When do sunrise and sunset happen in Old Saint Marys?
- Sunrise is at 7:31 AM and sunset at 7:00 PM.