Does the date on the mobile phone show the lunar calendar or the solar calendar?

The subject asked: "Does the default date of the mobile phone display the lunar calendar or the solar calendar?" By default, the mobile phone date shows the solar calendar.

The date on the mobile phone shows the time based on the Gregorian calendar. Gregorian calendar is a kind of solar calendar, which takes the earth return cycle (about 365.2425 days) as a natural year and divides it into 12 months. This time system, which is widely used in daily use, is generally accepted and used in most countries and regions. The lunar calendar calculates time according to the period of the moon. Farmers will rely on the lunar calendar to arrange agricultural activities or celebrate important events such as traditional festivals.