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Coquimbo Region, Chile

Coquimbo Region uses mainland Chilean time: UTC−3 during daylight-saving time and UTC−4 during standard time. Its current offset therefore depends on the date and the clock schedule in force.

Coquimbo, Chile

Friday, 4 September 2026

UTC−4 · America/Santiago

Time and sun data for Coquimbo — the largest city of Coquimbo Region

The sun in Coquimbo

Sunrise 06:59 Solar noon 12:46 Sunset 18:33 Daylight 11 h 35 min Night 12 h 25 min Civil twilight 06:35 – 18:57

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Current time in Coquimbo Region, Chile

Coquimbo Region uses mainland Chilean time: UTC−3 during daylight-saving time and UTC−4 during standard time. Its current offset therefore depends on the date and the clock schedule in force. La Serena, the regional capital, and neighboring Coquimbo display the same local time as inland communities. For future appointments, store the zone as America/Santiago so the seasonal rule is applied automatically.

The regional time-zone pattern

A fixed UTC offset describes only part of the year. The America/Santiago identifier describes the governing zone and lets updated devices calculate the proper offset for a particular date. This distinction matters most for advance bookings and recurring events.

Choose America/Santiago in calendar settings. Include the date when giving an international conversion. Check devices after a scheduled seasonal transition. Confirm travel times with the operator’s local timetable.

The cities of La Serena and Coquimbo share a clock; agreeing on where one ends is the harder calculation. Coquimbo Region shares its civil-time pattern with most of mainland Chile. It should not be assigned the permanent UTC−3 arrangement used by Aysén and Magallanes.

Urban centers and sunrise around Coquimbo

La Serena and Coquimbo form the region’s largest urban area. Ovalle is the main city of Limarí Province, while Illapel is the provincial capital of Choapa. Vicuña is an important settlement in the Elqui Valley. All keep one regional civil time.

Their sunrise readings differ because the coast, interior valleys, and southern part of the region occupy different coordinates. Coastal hills, valley walls, and the Andes can also delay visible sunlight beyond the calculated astronomical sunrise.

Seasonal variation changes both day length and the Sun’s path. A legal clock shift may move the displayed sunrise abruptly, whereas the underlying astronomical change proceeds gradually from day to day. Both effects belong in any careful comparison.

Use the desired city rather than the regional centroid. Select the local calendar date. Consult dawn times when planning astronomical observation. Account for hills, marine cloud, and the actual viewing horizon.

The distinction is particularly useful in the Elqui Valley, where an astronomy plan may depend on darkness and twilight rather than sunrise alone. Civil time organizes the itinerary; solar and twilight calculations describe the available natural light.

Questions and answers

Do La Serena and Coquimbo show the same time?
Yes. The adjoining cities use the same mainland Chilean clock.
Does Coquimbo Region remain on one UTC offset all year?
No. It follows seasonal mainland rules and can use UTC−3 or UTC−4.
Will sunrise be identical in Ovalle and Vicuña?
No. Their clocks agree, but coordinates and surrounding terrain affect sunrise and visible first light.
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