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Excel Date and Time Functions: Full List with Examples

By Rinkesh Shah, founder of Cellgrids.

Date and time functions build dates, calculate ages and working days, and return today or now. They are used in HR, finance and project sheets. Open any function for its syntax, arguments, a worked example and a free practice spreadsheet.

FunctionWhat it does
TODAYReturns today's date, updated automatically.
NOWReturns the current date and time.
DATEBuilds a real date value from separate year, month, and day numbers.
DATEDIFCalculates the difference between two dates in days, months, or years.
DAYPulls just the day number out of a date.
MONTHPulls just the month number out of a date.
YEARPulls just the year out of a date.
WEEKDAYReturns which day of the week a date falls on, as a number.
WEEKNUMReturns which week of the year a date falls in.
EOMONTHReturns the last day of the month, a set number of months away.
EDATEReturns a date a set number of months before or after a start date.
NETWORKDAYSCounts working days between two dates, excluding weekends.
WORKDAYReturns the date a set number of working days from a start date.
TIMEBuilds a time value from separate hour, minute, and second numbers.
HOURPulls just the hour out of a time value.
ISOWEEKNUMReturns the ISO week number of the year for a date.
DATEVALUEConverts a date stored as text into a real date value.
TIMEVALUEConverts a time stored as text into a real time value.
DAYSReturns the number of days between two dates.
DAYS360Returns days between two dates based on a 360-day year.
YEARFRACReturns the fraction of a year between two dates.
NETWORKDAYS.INTLCounts working days between two dates with a custom weekend.
WORKDAY.INTLReturns a future/past workday with a custom weekend.
MINUTEPulls just the minute out of a time value.
SECONDPulls just the second out of a time value.
DATEDIF + TODAYFinds how many days have passed between a fixed start date and today, updating automatically every day.
EOMONTH + TODAYFinds the last day of the current month, automatically staying current as the month changes.
NETWORKDAYS + IFCounts working days between two dates using NETWORKDAYS, then classifies the result with IF.
WEEKDAY + IF (weekend check)Uses WEEKDAY to get a date's day-of-week number, then IF to classify it as a weekend or weekday.
YEAR + MONTH (period key)Combines YEAR and MONTH into a single sortable text label like '2026-03' for grouping data by month.

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Frequently asked questions

What are the main Excel Date and Time functions?

Cellgrids lists 30 Excel Date and Time functions. Popular ones include TODAY, NOW, DATE, DATEDIF, DAY. Each has its own page with syntax, arguments and an example.

How can I practice Excel Date and Time functions online?

Open the free live spreadsheet on Cellgrids, type the function in a cell and check your answer. No Excel install or sign-up is needed to start.

Which Excel Date and Time function should a beginner learn first?

Start with TODAY. Returns today's date, updated automatically.

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