This answer is being written in January 2011.
The current Hebrew year is 5771. It began on September 9, 2010, and
will end on September 28, 2011.
This Hebrew year is a leap year, and a 13th month will be added to it.
The extra month ... named "Adar-1"... begins on February 5, 2011.
Today is Friday the 13th, February 13th, 2009, that is!
Yes. A calendar month can be from a date in one month to the corresponding date in the next month, so the 20th to the 20th of the next month qualifies as being a calendar month.
A 1 month calendar notice means that notice of an event, such as moving out of an apartment, based on the calendar. This means you would give notice on the 1st of the month if you wanted to move out on the 30th. This is different than a 30-day notice, where you could give notice on the 14th and move out on the 13th of the next month.
The next Friday 13 in the calendar year after July 13 2012 is in September 2013.
It starts on the 25th of Kislev (on the Jewish lunar calendar) and ends on the 2nd or 3rd of Tevet (The next month). Because the holiday is observed on the lunar calendar, the Secular dates are usually in the November-January time frame.
August 13th, September 12th, and October 11th, 2011 are the next three full moon occurrences.
The next time Friday the 13th will fall in March is March 13, 2015.
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.
Every month has either 29 or 30 days. (one month 29, the next 30). There are 12 months altogether but once every 3-4 years, another month is added so that the Jewish holidays always fall in the right time since the Hebrew calendar is both by the moon and sun (Passover in spring etc.) The calender is from right to left as the Jews write from right to left.
This may be somewhat confusing, but here it is: Printed Jewish calendars, or books that outline the order of prayers through the year, will begin with the month of 'Tishrei' ... the month in which Rosh Hashana, "Head of the Year", occurs ... usually corresponding to sometime in September. The next month ... second in the printed calendar ... is 'Cheshvan'. But the Torah refers to those months as the seventh and eighth months respectively. As far as the Torah is concerned, the first month is the month of 'Nissan' ... the month in which Passover occurs ... corresponding to some time in March or April. On that basis, the second month is 'Iyar'.
It starts on the first day of the month of Tishrei in the Hebrew ritual calendar. The next arrival of that date will be IY"H at sunset on Wednesday, September 8, 2010.
A calendar month is a period of time from the date of one month to the same date of the next month.