Issue with converting Javascript Date

Question

I have a string "2014-01-27". Now how can it be converted into "2014-01-27T00:00:00.0000000" ? Is that a valid date format avail in javascript ?

new Date("2014-01-27").toISOString() is at least close, showing milliseconds instead of nanoseconds. — filmor
– filmor, Commented May 14, 2014 at 8:54

RobG · Accepted Answer · 2014-05-14 09:00:49Z

2

"2014-01-27T00:00:00.0000000" ? Is that a valid date format avail in javascript ?

Yes, but…

ECMA-262 says that where an ISO 8601-like string is missing the time zone (e.g. 2014-01-27T00:00:00.0000000) then it is assumed to be UTC. However, if you pass a string like that to Date.parse, some browsers treat it as local and some as UTC (and some, like IE 8, won't parse it at all, even with a time zone).

To avoid that, manually parse the string and create a UTC date:

function parseYMDasUTC(s) {
  var b = s.split(/\D/);
  return new Date(Date.UTC(b[0],--b[1],b[2]));
}

console.log(parseYMDasUTC("2014-01-27")); // Mon Jan 27 2014 08:00:00 GMT+0800

answered May 14, 2014 at 9:00

RobG

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