Below is the list of 24 Date and Time functions, please see below for details or check all Excel functions here:

FunctionFormula
DATE FunctionDate(Year,Month,Day)
DATEDIF FunctionDatedif(Start_Date,End_Date,Unit)
DATEVALUE FunctionDatevalue(Date_Text)
DAY FunctionDay(Serial_Num)
DAYS360 FunctionDays360(Start,End,[Method])
EDATE FunctionEdate(Start_Date, Months)
EOMONTH FunctionEomonth(Start_Date, Months)
HOUR FunctionHour(Serial_Num)
ISOWEEKNUM FunctionIsoweeknum(Date)
MINUTE FunctionMinute(Serial_Num)
MONTH FunctionMonth(Serial_Num)
NETWORKDAYS FunctionNetworkdays(Start_Date, End_Date, [Holidays])
NETWORKDAYS.INTL FunctionNetworkdays.Intl(Start, End, [Weekend], [Holidays])
NOW FunctionNow()
SECOND FunctionSecond(Serial_Num)
TIME FunctionTime(Hour, Minute, Second)
TIMEVALUE FunctionTimevalue(Time_Text)
TODAY FunctionToday()
WEEKDAY FunctionWeekday(Serial_Num,[Return_Type])
WEEKNUM FunctionWeeknum(Serial_Num,[Return_Type])
WORKDAY FunctionWorkday(Start_Date, Days, [Holidays])
WORKDAY.INTL FunctionWorkday.Intl(Start_Date, Days, [Weekend], [Holidays])
YEAR FunctionYear(Serial_Num)
YEARFRAC FunctionYearfrac(Start_Date, End_Date, [Basis])