Which Asian country's flag has a yellow sun with 40 rays on a red field?

Kyrgyzstan's national flag has a yellow sun with 40 rays on a red field. At the center of the sun is a stylized tündük, the crown-like opening of a traditional Kyrgyz yurt, confirming Kyrgyzstan as the answer.

The flag was first adopted on 3 March 1992, shortly after Kyrgyzstan became independent from the Soviet Union. Its red field is linked with bravery and valor and also recalls the banner traditionally associated with Manas, Kyrgyzstan's legendary national hero. The sun represents peace and prosperity.

The 40 rays refer to the 40 tribes that legend says were united by Manas in the struggle against the Mongols. The central tündük symbolizes the roof opening of a yurt and evokes the shared home, hearth, and unity of the Kyrgyz people. In December 2023, the flag's sun rays were changed from a wavy form to uniformly spaced rays, while the 40-ray symbolism remained unchanged.