28 days
The earth spinning on its axis
In 1969, Sangrand of the month of Assu fell on September 23rd. Sangrand marks the beginning of a new month in the Punjabi calendar, and Assu typically corresponds to late September to mid-October in the Gregorian calendar.
Bill Gates is born on October the 28 so his birthstone is the Opal and pink tormaline.
Astronomically, a month is typically defined as the time it takes for the Moon to complete one full cycle of phases, which is about 29.5 days. This period is known as a synodic month. There are other types of months, such as the sidereal month (27.3 days), which is the time it takes for the Moon to return to the same position relative to the stars.
Vikram Samvat 2022 corresponds to the year 2022 in the Gregorian calendar, and Ashwin Krishna Paksha Tithi Panchami falls in the month of October. Specifically, this would be around October 12, 2022, as the Vikram Samvat calendar and the lunar calendar can vary slightly based on local observations.
28 days
The earth spinning on its axis
synchronous rotation
Hereturikoka is the ninth month of the Maori lunar calendar, which roughly corresponds to our December.
An event that occurs every 18 months is often referred to as a "biennial" event, although "biennial" typically means every two years. In a more specific context, it may be described as an "18-month cycle" or "semiannual" depending on the nature of the event. In scientific or astronomical contexts, specific terms might be used to denote cycles of that length, but there isn't a widely recognized single term for an 18-month event.
The word 'holiday' comes from 'holy day' and the Baha'i calendar still has holy days. When each Messenger of God appears people begin counting time again, so there is a Christian calendar, Jewish calendar, Muslim calendar, etc. And there is a Baha'i calendar. The Baha'i calendar is a solar calendar which means that events are observed each year on the same date. The calendar begins with the spring equinox. For practical purposes the date corresponding to March 21 is used as the first day of the year. That, for Baha'is, is a holy day with the name: Naw Ruz. It is also the Feast day of Baha or Splendor. There are nineteen Feast days each year which mark the beginning of each of the nineteen months. Each month has nineteen days. On the day that corresponds to April 9 is the Feast day beginning the month of Jalal or Glory. On the day that corresponds to April 21 is the first day of the twelve day Festival of Ridvan. The first, ninth and twelfth days of this period of time are holy days. These days commemorate the Declaration of Baha'u'llah, the Prophet-Fopunder of the Baha'i Faith, as the Messenger of God for this time. On the day that corresponds to April 28 is the Feast day beginning the month of Jamal or Beauty. On the day that corresponds to May 17 is the Feast day beginning the month of 'Azamat or Granduer. On the day that corresponds to May 23 commemorates the Declaration of the Bab (pronounced bob) the Prophet-Herald of Baha'u'llah and is a holy day for Baha'is. On the day that corresponds to June 5 is the Feast day beginning the month of Nur or Light. On the day that corresponds to June 24 is the Feast day beginning the month of Rahmat or Mercy. On the day that corresponds to July 9 commemorates the martyrdom of the Bab and is a holy day for Baha'is. On the day that corresponds to July 13 is the Feast day beginning the month of Kalamat or words. On the day that corresponds to August 1 is the Feast day beginning the month of Kamal or Perfection. On the day that corresponds to August 20 is the Feast day beginning the month of Asma' or Names. On the day that corresponds to September 8 is the Feast day beginning the month of 'Izzat or Might. On the day that corresponds to September 27 is the Feast day beginning the month of Mashiyyat or Will. On the day that corresponds to October 18 is the Feast day beginning the month of 'Ilm or Knowledge. On the day that corresponds to October 20 commemorates the birth of the Bab and is a holy day for Baha'is. On the day that corresponds to November 4 is the Feast day beginning the month of Qudrat or Power. On the day that corresponds to November 12 commemorates the birth of Baha'u'llah and is a holy day for Baha'is. On the day that corresponds to November 23 is the Feast day beginning the month of Qawl or Speech. On the day that corresponds to November 28 commemorates the death of 'Abdul-Baha the Center of the Baha'i Covenant and is a holy day for Baha'is. On the day that corresponds to December 12 is the Feast day beginning the month of Masail or Questions. On the day that corresponds to December 31 is the Feast day beginning the month of Sharaf or Honor. On the day that corresponds to January 19 is the Feast day beginning the month of Sultan or Sovereignty. On the day that corresponds to February 7 is the Feast day beginning the month of Mulk or Dominion. On the day that corresponds to February 26 through March 1 are the intercalary days, four most years, five in leap years. These are days for parties, gifts and philanthropy. On the day that corresponds to March 2 is the Fast day beginning the month of Ala or Loftiness. This is the month of fasting during the daylight. The fasting is a symbol of our detachment from the world and time of renewal before the new year begins at the end of the month.
Hanukkah occurs during the Hebrew month of Kislev. This usually corresponds to December, but sometimes it begins in November.
The month of January corresponds to the Jewsih-calendar months of Tevet/Shavt
Shevat, sometimes spelled in English as Shebat, corresponds roughly to January-February. It's the eleventh Jewish month.
You can look in the newspapers, some papers have a monthly column on astronomical events. Or you can look in an almanac such as Whitaker's Almanac. These tell you where the different planets are from month to month.
BBC Play of the Month - 1965 Passage to India - 1.2 was released on: UK: 16 November 1965 USA: 26 January 1968
This month you can get Shaymin in the US and next month you can get Regigigas, the Shaymin event is February 8th-14th and the Regigigas event is March well I forget when it starts, but it ends on the 21st.