Solar Hijri calendar

The Solar Hijri calendar is an important and special calendar used to mark important occasions in Iran and Afghanistan. The calendar follows the sun's cycle and has 12 months, each lasting about 30 days. During leap years, an extra month is added to the end of the year. The Solar Hijri calendar was first used around 1000 AD, and is still used today. Because it follows the sun’s cycles, it runs in line with the seasons and other important events that happen each year. People who use the Solar Hijri calendar use it to tell time and also celebrate special occasions like birthdays, holidays, and other important events.