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Nan, Thailand

Nan uses Indochina Time, seven hours ahead of UTC, without daylight saving changes. One official clock covers the northern province, but sunrise varies across its valleys and mountainous terrain as well as through the year.

Nan, Thailand

Friday, 4 September 2026

UTC+7 · Asia/Bangkok

Time and sun data for Nan — the largest city of Nan

The sun in Nan

Sunrise 06:04 Solar noon 12:17 Sunset 18:31 Daylight 12 h 27 min Night 11 h 33 min Civil twilight 05:42 – 18:53

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Current time in Nan, Thailand

Nan’s local time is ICT, or UTC+7. The offset stays fixed in every month because Thailand does not move its clocks forward or backward seasonally. This applies to Nan city and all districts in the province.

Domestic time comparisons are therefore direct: Nan shares its hour with the rest of Thailand. The difference from a foreign city may not be equally stable. If that city observes daylight saving time, its relationship to Nan changes when its local rules take effect. Nan’s mountain roads may wind; its time-zone rule goes perfectly straight.

Towns among the valleys

Nan is a northern province characterized by river valleys, uplands, and communities separated by substantial terrain. Its capital is the largest administrative and urban focus, while district towns provide services across the province.

Principal reference locations include: Nan, the provincial capital Pua, a district town in the north Wiang Sa, south of the capital Thung Chang, serving communities farther north All these places keep identical civil time. A search result or clock labelled simply “Nan” normally points to Nan city. It remains valid for checking the time zone elsewhere, but sunrise, sunset, and weather should be requested for the actual town or coordinates.

Sunrise in mountainous country

A standard sunrise calculation refers to the geometric horizon for a given place and date. Nan’s terrain makes the distinction between calculated and visible sunrise especially useful. A nearby ridge may block direct sunlight after the sun has technically risen, while an elevated open viewpoint may have a different visual horizon.

The published hour also changes through the seasons because the sun’s apparent path is not constant. Longitude creates smaller differences between eastern and western communities. Dawn occurs before sunrise, bringing increasing ambient light into valleys before the solar disc becomes visible.

Select a nearby town or use precise coordinates. Enter the date of the planned activity. Check civil twilight for pre-sunrise light. Account for ridges, forest, clouds, and the direction of view. These checks are helpful for road travel, viewpoints, hiking, farming, and photography. A province-wide time zone tells you how to set the clock, but it cannot describe the local horizon.

Questions and answers

How many hours ahead of UTC is Nan?
Nan is seven hours ahead of UTC.
Does mountainous terrain change the official time?
No. It can change when sunlight becomes visible, but every district still uses UTC+7.
Should I use Nan city’s sunrise for Pua?
For a rough guide it may be close, but a Pua-specific calculation is the better choice.
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