javascript - What format is used for nodejs fs.utimes -

in nodejs, arguments of fs.utimes should written in format，e.g.atime,mtime.

api: fs.utimes(path, atime, mtime, callback)

those parameters javascript dates, not strings.

from docs:

please note atime, mtime , ctime instances of date object , compare values of these objects should use appropriate methods. general uses gettime() return number of milliseconds elapsed since 1 january 1970 00:00:00 utc , integer should sufficient comparison, there additional methods can used displaying fuzzy information. more details can found in mdn javascript reference page.

and source code:

fs.utimes = function(path, atime, mtime, callback) {   callback = makecallback(callback);   if (!nullcheck(path, callback)) return;   binding.utimes(pathmodule._makelong(path),                  tounixtimestamp(atime),                  tounixtimestamp(mtime),                  callback); };   // converts date or number fractional unix timestamp function tounixtimestamp(time) {   if (util.isnumber(time)) {     return time;   }   if (util.isdate(time)) {     // convert 123.456 unix timestamp     return time.gettime() / 1000;   }   throw new error('cannot parse time: ' + time); } 

which shows can javascript date or unix style numeric date.

this line important!!! return time.gettime() / 1000; means if pass in number pass in unix style number milliseconds represented in 1/1000s different integer returned date.gettime()

see link on unix timestamps