Change file timestamps
Syntax
TOUCH [option]… files …
Key
/t year month day hour minute secondThis is a POSIX utility.
Use the optional argument /t to specify a date other than the current time.
( four-digit years, two-digit months, days, hours, minutes, seconds)
Example
To set the date to 7:30 am 1st October 2015
TOUCH /t 2015 10 01 07 30 00 MyFile.txt