The Paschal full moon appeared on April 12 this year. So Easter is on April 20, the first Sunday after the full moon's ...

Year-round schools have long been thought to potentially improve academics by reducing the length of summer break. Research nationally has been spotty on how effective that calendar type is toward ...

Each Islamic month lasts either 29 or 30 days, depending on the moon’s visibility. Consequently, a lunar year is ...