months.now guides & articles
10 in-depth guides on Months and related topics.
Quick answers
Quick answers
30, 60 and 90 Day Date Math: Working Out 90 Days From Today
Why 90 days and three months are different periods, where end-of-month dates break the arithmetic, and how contracts usually define 30, 60 and 90 day terms.
Quick answers
February and Leap Years: How Many Days in February and Why
February has 28 days, or 29 in a leap year. Here is the complete leap rule including the century exception, why the month is short, and how leap day birthdays work.
Quick answers
Fiscal Quarters Explained: How Q1 to Q4 Map to the Months
How fiscal quarters work: the months in each of Q1 to Q4, why a fiscal year rarely matches the calendar year, and the national and corporate calendars that differ.
Quick answers
How Many Days in Each Month: The Complete Reference
The number of days in each month, set out in order, with February's two cases explained and three reliable ways to remember the whole pattern from memory.
Quick answers
Month End Close: What It Is and How to Shorten It
The month end close in plain terms: what finance teams actually do, the order they do it in, why some months are harder than others, and how to close faster.
Calendar notes
Calendar notes
Month Names in Other Languages: Latin Roots, Native Names and Numbers
How month names work across languages: the Latin-derived families, the languages that number months instead of naming them, and the traps this creates for dates.
Calendar notes
Seasons vs Months: Why Spring Has Two Different Start Dates
Two definitions of the seasons run side by side: one built from whole calendar months, the other from the solstices and equinoxes. Here is how they differ.
Calendar notes
The Knuckle Trick for Months: How the Hand Mnemonic Works
How the knuckle trick for months works, in both the two-hand and one-hand versions, and how it compares with the thirty-days-hath-September rhyme.
Calendar notes
Where Month Names Come From: The Origin of Each Month Name
Each month is named after a Roman god, festival, emperor or number. Here is the origin of all twelve names and how the Latin set reached English.
Calendar notes
Why September Is the Ninth Month When Its Name Means Seventh
September means seventh yet sits ninth in the year. The explanation is a Roman calendar that began in March, two months bolted onto the front, and no renaming.