Time zone
Central Standard Time (CST), UTC−6. IANA zone America/Chicago.
Tuesday, November 3, 2026
CST · UTC−6 Central Standard Time
Central Standard Time (CST), UTC−6. IANA zone America/Chicago.
Sunday, March 14, 2027: clocks go forward 1 hour at 2:00 AM local time (UTC−6 → UTC−5).
Round Rock, Texas, United States. Coordinates 30.51° N, 97.68° W; population about 115,997.
Calculated for the city centre at sea level; accurate to about a minute. Golden hour is when the sun is between 4° below and 6° above the horizon; blue hour between 6° and 4° below. See the whole month or another date.
Hour comparison appears when this page finishes loading.
| City | Local time | Difference from Round Rock |
|---|---|---|
| New York City, New York | 7:00 AM | 1 hour ahead of Round Rock |
| Los Angeles, California | 4:00 AM | 2 hours behind Round Rock |
| Denver, Colorado | 5:00 AM | 1 hour behind Round Rock |
| Phoenix, Arizona | 5:00 AM | 1 hour behind Round Rock |
| Honolulu, Hawaii | 2:00 AM | 4 hours behind Round Rock |
| Anchorage, Alaska | 3:00 AM | 3 hours behind Round Rock |
| Toronto, Canada | 7:00 AM | 1 hour ahead of Round Rock |
| Vancouver, Canada | 5:00 AM | 1 hour behind Round Rock |
| Mexico City, Mexico | 6:00 AM | Same time as Round Rock |
| São Paulo, Brazil | 9:00 AM | 3 hours ahead of Round Rock |
| Buenos Aires, Argentina | 9:00 AM | 3 hours ahead of Round Rock |
| London, United Kingdom | 12:00 PM | 6 hours ahead of Round Rock |
| Dublin, Ireland | 12:00 PM | 6 hours ahead of Round Rock |
| Paris, France | 1:00 PM | 7 hours ahead of Round Rock |
Round Rock uses Central Standard Time (CST, UTC−6) as standard time and Central Daylight Time (CDT, UTC−5) during daylight saving time. Its IANA time-zone identifier is America/Chicago, which is what phones and computers use to set the local time.
Yes. Sunday, March 14, 2027: clocks go forward 1 hour at 2:00 AM local time (UTC−6 → UTC−5). The previous change was on Sunday, November 1, 2026.
Round Rock is 6 hours behind UTC on standard time and 5 hours behind UTC during daylight saving time.
The table above shows today’s sunrise, sunset and day length for the city centre. As an example, on Tuesday, November 3, 2026 the sun rose at 6:46 AM and set at 5:41 PM, giving 10 h 55 min of daylight.