The moon partially covers the sun during a solar eclipse seen from Gaza City in the Middle East on March 29, 2006. Around 2 minutes of darkness in late morning on Monday, Aug. 21, 2017, will present Oregon tourism with perhaps its biggest international travel marketing opportunity ever, especially to visitors from Asia.
Definition of calendar year. 1 : a period of a year beginning and ending with the dates that are conventionally accepted as marking the beginning and end of a numbered year. 2 : a period of time equal in length to that of the year in the calendar conventionally in use.
Lunar calendar. A lunar calendar is a calendar that is based on cycles of the lunar phase. Because there are about twelve lunations in a solar year, this period is sometimes referred to as a lunar year. A common purely lunar calendar is the Islamic calendar or Hijri Qamari calendar. A feature of the Islamic calendar is that a year is always 12 months, so the months are not linked with the seasons and drift each solar year by 11 to 12 days.