Get Week of the year =DATE(YEAR([Start Time]),MONTH([Start Time]),DAY([Start Time]))+0.5-WEEKDAY(DATE(YEAR([Start Time]),MONTH([Start Time]),DAY([Start Time])),2)+1 First day of the week for a given date: =[Start Date]-WEEKDAY([Start Date])+1 Last day of the week for a given date: =[End Date]+7-WEEKDAY([End Date]) First day of the month for a given date: =DATEVALUE(“1/”&MONTH([Start Date])&”/”&YEAR([Start Date])) Last day of the month for a given year (does not handle Feb 29). Result is in date format: =DATEVALUE (CHOOSE(MONTH([End Date]),31,28,31,30,31,30,31,31,30,31,30,31) &”/” & MONTH([End Date])&”/”&YEAR([End Date])) Day Name of the week : e.g Monday, Mon =TEXT(WEEKDAY([Start Date]), “dddd”) =TEXT(WEEKDAY([Start Date]), “ddd”) The name of the month for a given date – numbered for sorting – e.g. 01. January: =CHOOSE(MONTH([Date Created]),”01. January”, “02. February”, “03. March”, “04. April”, “05. May” , “06. June” , “07. July” , “08. August” ...