10 examples of 'moment difference between two dates' in JavaScript

128
function dateDiff(start, end) {
129
  return moment(start).diff(end, 'minutes');
130
}

1297
function get_date_diff(d1,d2) {
1298
    d1 = new Date(d1);
1299
    d2 = new Date(d2);
1300
    var diff = d1 - d2;
1301
    var min_same = d1.getMinutes() === d2.getMinutes();
1302
    var hour_same = d1.getHours() === d2.getHours();
1303
    var isDateSame = d1.toLocaleDateString() === d2.toLocaleDateString();
1304
    if(diff <= 60*1000 && hour_same && min_same && this.show_terse_dates_)
1305
        return null;
1306
    else
1307
        return RCloud.utils.format_date_time_stamp(d1, diff, isDateSame, true, this.show_terse_dates_);
1308
}

74
_dateDiffInDays(a, b) {
75
  // Discard time and time-zone information.
76
  const utc1 = Date.UTC(a.getFullYear(), a.getMonth(), a.getDate());
77
  const utc2 = Date.UTC(b.getFullYear(), b.getMonth(), b.getDate());
78
79
  const MS_PER_DAY = 1000 * 60 * 60 * 24;
80
  const daysDiff = Math.floor((utc2 - utc1) / MS_PER_DAY);
81
  return {days: Math.abs(daysDiff), future: daysDiff < 1};
82
}

155
function diff (dt1, dt2) {
156
  if (dt2) {
157
    return Miment(dt1).valueOf() - Miment(dt2).valueOf()
158
  } else {
159
    return this.valueOf() - Miment(dt1).valueOf()
160
  }
161
}

207
export function calculateDaysBetween(datetime1: Date, datetime2: Date): number {
208
    // The number of milliseconds in one day
209
    const oneDay = 1000 * 60 * 60 * 24;
210
211
    // Convert both dates to milliseconds
212
    const date1Ms = datetime1.getTime();
213
    const date2Ms = datetime2.getTime();
214
215
    // Calculate the difference in milliseconds
216
    let differenceMs = Math.abs(date1Ms - date2Ms); // Convert back to days and return
217
    return Math.round(differenceMs / oneDay);
218
}

64
function dateDelta(date1, date2) {
65
	if (date2.getTime() < date1.getTime())
66
	{
67
		var d = dateDelta(date2, date1);
68
		return {years: -d.years, months: -d.months};
69
	}
70
	var dMonths = 12*(date2.getYear()-date1.getYear()) + (date2.getMonth()-date1.getMonth());
71
	if (date2.getDate() < date1.getDate()) dMonths -= 1;
72
	var dYears = Math.floor(dMonths/12);
73
	//dMonths -= dYears*12;
74
	/*var dDays = (new Date(
75
		date1.getFullYear()+dYears, date1.getMonth()+dMonths, date2.getDate(),
76
		date2.getHours(), date2.getMinutes(), date2.getSeconds(), date2.getMilliseconds()
77
		).getTime() - date1.getTime()) / MS_PER_DAY;*/
78
	return {years: dYears, months: dMonths};
79
}

99
static isDifferent(
100
    firstDate: moment.MomentInput,
101
    secondDate: moment.MomentInput,
102
    granularity?: moment.unitOfTime.StartOf
103
): boolean {
104
    return !moment(firstDate).isSame(secondDate, granularity) && (!!firstDate || !!secondDate);
105
}

53
function diffDates(now, then) {
54
  const diff = then - now;
55
  let remaining = diff;
56
  const days = Math.floor(remaining / dayMs);
57
  remaining = remaining % dayMs;
58
  const hours = Math.floor(remaining / hourMs);
59
  remaining = remaining % hourMs;
60
  const minutes = Math.floor(remaining / minMs);
61
  remaining = remaining % minMs;
62
  const seconds = Math.floor(remaining / secMs);
63
  remaining = remaining % secMs;
64
65
  return {
66
    days: addZeros(days),
67
    hours: addZeros(hours),
68
    minutes: addZeros(minutes),
69
    seconds: addZeros(seconds),
70
  };
71
}

19
function withInDays(a, b, days) {
20
  let aTime = +new Date(a.createdOn);
21
  let bTime = +new Date(b.createdOn);
22
23
  return aTime - bTime < daysToMs(days);
24
}

92
function daysBetween(startDate, endDate) {
93
    var millisecondsPerDay = 24 * 60 * 60 * 1000;
94
    return (treatAsUTC(endDate) - treatAsUTC(startDate)) / millisecondsPerDay;
95
}