what comparison format store date/times sql server database php your primary language?

i am formulation php concentration needs store date/times an mssql database. (for curious, calendar application.) comparison format store information?

mssql the possess datetime information type, works good database itself unequivocally readable. however, there aren't any mssql functions interpret datetime values php's comparison format--unix timestamp. creates bit some-more upsetting php. unix timestamp appealing since that's php likes, nonetheless it's definitely entertaining there aren't garland good built-in mssql functions operative data.

would store information datetime information type, unix timestamps (as int, bigint, varchar datatype), both formats side side, something else entirely?