Best way to convert Milliseconds to number of years, months and days
3880
How to convert Milliseconds to "X mins, x seconds" in Java?
68086
Change date format [YYYYMMDD] to [MM/DD/YYYY]
139860
converting numbers to time
140240
Is there any easy way to increment a DateTime by monthly/yearly/daily units without having to parse it out like crazy?
101817
What is the best way to convert date from JavaScript string in format YYYYMMDD to JavaScript date?
63079
How to subtract/add days from/to a date?
52509
changing date format from dd/MM/yyyy to MM/dd/yyyy
37862
How to change date format from DD/MM/YYYY or MM/DD/YYYY to YYYY-MM-DD?
55203
Converting a year from 4 digit to 2 digit and back again in C#
84876
Convert month number to month short name
63806
Convert date from milliseconds to ISODate object
124571
How to add days to a date in Java
33363
Calculating milliseconds from epoch
5305
How to calculate age in T-SQL with years, months, and days
102283
Add correct century to dates with year provided as "Year without century", %y
10427
How do I get the number of days between two dates in JavaScript?
140279
Convert seconds into minutes and seconds