because the calendar has 29 1/2 half days like the moon
28 days. When viewed from the earth, the moon goes through phases. It starts out as a "full moon" and then as you watch it each night you see it get smaller and smaller until it disappears and then it returns back. These phases are shown on many Calendars, so you can refer to a calendar to study the orbit of the moon.
because mind
The times of the full moon and the new moon are important to a lot of people. Several of the world's most popular religions use calendars whose months begin at the time of the new moon. Moon phases are important to avid fishermen (and fisherwomen) due to the change in the habits of fish from one moon phase to another. Some people prefer camping when the moon is full. Moon phases are important on some construction jobs that can be done only at high tide or low tide.
Although the Gregorian calendar has "months", it is not in any way governed by the phases of the moon. It is strictly a solar calendar, so its emphasis is to remain in sync with the solstices and equinoxes, the characteristics of the Earth's orbit of the sun. Only lunar calendars, like the Muslim calendar, and lunisolar calendars, like the Jewish calendar, are based on the phases of the moon, with each month beginning at the time of the new moon.
because sometimes people study the moon in other different ways.
You can find moon calendar for year 2010 at calendarlabs.com
Days, dates, national holidays, some calendars have things like the moon cycles on them. Some calendars show multiple years
lunar calender
28 days. When viewed from the earth, the moon goes through phases. It starts out as a "full moon" and then as you watch it each night you see it get smaller and smaller until it disappears and then it returns back. These phases are shown on many Calendars, so you can refer to a calendar to study the orbit of the moon.
it contains calendars,tide tables,moon phases,weather forecast,and advice
Most ancient calendars were based off of the Moon's position, the Stars' position, the Sun's position, and the season.
Calendars are based on astronomy: the cycle of the moon and the seasons.
because mind
As far as I know, all calendars that use lunar cycles start their months with the new moon.
The three primary types of calendars are the solar, lunar and lunisolar. Calendars that are based on the earth's revolution around the sun without regard for the moon's monthly cycle, like the Gregorian calendar used in most if not all Christian countries, are called solar calendars. Calendars that are based only on the moon's revolution around the earth without compensation for the seasonal effects of the earth's solar orbit, like the Hijra used in Islamic countries, are called lunar calendars. Lunisolar calendars, like the Jewish calendar, have months that start at the times of the new moon but also periodically (seven times every nineteen years) add leap months in an attempt to stay in sync with the solar cycle as well.
The calendar we use is based on the sun. Did you know that some calendars are based on the moon?
changes in the Moon's visibility