Member Avatar for ramsiva

I have two dates
var date1="2015-09-18 06:08:50";
var date2="2015-09-18 06:08:51";

I am suffering to get greater one date2.
any body help me.

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As shows, the inputs are date/time strings with a space between date and time. is right that Date objects and comparison operators work, but the format "YYYY-MM-DD HH:MM:SS" is not guaranteed to parse the same way in all JS engines. A safe pattern is to either convert the string to a standard ISO form first or parse the numeric components and build a Date explicitly.

A quick, reliable approach (turn the space into a "T", check for invalid dates, then compare):

const s1 = '2023-01-02 09:15:30';
const s2 = '2023-01-02 09:15:31';

const d1 = new Date(s1.replace(' ', 'T'));
const d2 = new Date(s2.replace(' ', 'T'));

if (isNaN(d1.getTime()) || isNaN(d2.getTime())) {
  // handle parse error
} else if (d1 > d2) {
  // d1 is later
} else if (d1 < d2) {
  // d2 is later
} else {
  // equal
}

For full control (no parser ambiguity), split the string into numbers and construct a Date:

function parseYMDHMS(s) {
  const [y,m,d,h = 0,min = 0,sec = 0] = s.split(/[- :]/).map(Number);
  return new Date(y, m - 1, d, h, min, sec);
}

Notes and cautions: comparing Date objects works because they convert to timestamps internally, but always test for invalid dates with isNaN(d.getTime()). ISO strings without a timezone are treated as local time; append Z for UTC. For complex needs or many formats, use a small library like Day.js or Luxon. See MDN for Date parsing and formats: Date — MDN. Thanks also to for the related thread pointer.

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Member Avatar for DaveAmour

If you make then Date objects can you not use comparison operators - eg >, < etc?

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