I have a row in excel with the following data: 1271664970687 (I think it's the number of milliseconds from 1970...). I would like to have addition row that will show it as date/time.
Approach : First declare variable time and store the milliseconds of current date using new date() for current date and getTime() Method for return it in milliseconds since 1 January 1970. Convert time into date object and store it into new variable date. Convert the date object's contents into a string using date.
Converting your value in milliseconds to days is simply (MsValue / 86,400,000)
We can get 1/1/1970 as numeric value by DATE(1970,1,1)
= (MsValueCellReference / 86400000) + DATE(1970,1,1)
Using your value of 1271664970687 and formatting it as dd/mm/yyyy hh:mm:ss
gives me a date and time of 19/04/2010 08:16:11
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