freecodecamp project. API gives object of unix and utc timestamp of given day.
GET /api/timestamp/:datestring
GET /api/timestamp (Current timestamp)
yyyy-m-d (2014-10-5)
yyyy-m (2014-10)
d-m-yyyy (5-10-2014)
Unix time (1412121600000)
{
"unix" : <int:unix-time>,
"utc" : <string:utc-date>
}