Yes.
The first day of a month in the Roman calendar.
It starts with the month of Muharram. Since this day is constantly changing and based on the lunar calendar, it's not the same day on the Gregorian calendar and changes year after year.
First of the calendar month or first of the calendar or fiscal year.
From the first day to the last day, inclusive, of the given month
A lunar calendar is a calendar based on the phases of the moon as opposed to one determined by the Sun, known as the solar calendar. The lunar calendar varies from different regions. For example, the Hindu calendar starts their first day of the month on a different day than to the Chinese calendar.
June
the first day of fall starts on September 22
From the first to the last day, inclusive, of any given month
I am a little confused regarding the beginning of the Hebrew year. I have read that it starts in the fall on Rosh Hashanah, and I have read that it starts in the spring on the 1st of Nisan.If the year begins on the first day of Rosh Hashanah, the third month is Kislev. But if Nisan is the first month then the third month is Sivan.Answer:The third month is Sivan. While the year starts in Tishrei, the months start in Nisan.
march
Eid-ul-fitr is celebrated by Muslims on the first day of the month of Shawal (8th month on the Islam Lunar Calendar), that is the first day after end of the month of Ramadan (9th month of the Islamic Lunar Calendar).
The first day of the next lunar month can vary depending on the specific lunar calendar being used. In general, the lunar month begins with the new moon, so you will need to consult a lunar calendar or lunar phase calendar to determine the exact date of the new moon and thereby the first day of the next lunar month.