It means that it is valid until the same date of the following month, e.g. Feb 8 - Mar 8 or Sep 21 - Oct 21 (the number of days very depending on the month).
Source: https://support.skype.com/en-us/faq/FA10414/how-do-subscriptions-work (see "How do skype subscriptions work?")
acceptiable
The phrase "two wrongs don't make a right" means that responding to a wrongful act with another wrongful act does not justify or correct the situation. It emphasizes the idea that retaliation or revenge is not a valid solution to a problem. Instead, it suggests that ethical behavior and resolution should be pursued, regardless of others' actions.
Not usually. It depends on how many days in a month. For advertisements when they say "month" it usually means 30 days. In most other cases it will also mean 30 days.
Bi-monthly has an ambiguity to it, it can mean 'twice a month' or 'every two months'. Where as semi-monthly means only 'twice a month'.
it means how many days are in the month
You get the notice on the Xth of month A, and you have until the Xth of month B to be gone.
The old roman calendar such as December mean 10 month because dec mean 10.
Ashur means 'a month of the Islamic calendar'.
A table or register with the days of each month and week in a year.
Decembris is the 10th month of the Julian calendar
Kislev is the name of the 9th month of the Jewish calendar. The 25th day of Kislev is the first day of Chanukah. The month overlaps with the month of December.
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 names September, October, November, and December mean the seventh and eighth and ninth and tenth month respectively. These come from the Roman calendar and do not correspond with the modern calendar.
It refers to the beginning of the new month (according the lunar/jewish calendar)
Some medicine can cause the time between periods to increase or decrease. Also having two menstruations in a calendar month is usual; time of periods aren't based on calendar time.
It doesn't mean anything, it just means that your period happened to start on the last day of the month. When your periods start have nothing to do with the calendar date.
The phrase "once in a blue moon" refers to something that happens very rarely. A blue moon is the term used for the second full moon occurring within a single calendar month, which is an uncommon event. The idiom emphasizes the infrequency of an occurrence, highlighting its uniqueness or rarity in everyday life.