10 examples of 'javascript convert date to timestamp' in JavaScript

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export function timestampToDate(timestamp?: pb.google.protobuf.ITimestamp) {
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  let millis: number
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  if (!timestamp) {
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    millis = 0
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  } else {
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    millis = timestamp.seconds as number * 1e3 + timestamp.nanos / 1e6
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  }
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  return new Date(millis)
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}

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function dateConverter(timestamp, format) {
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  //JS uses nanoseconds, hence the *100 multiplication
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  var a = new Date(timestamp * 1000);
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  //short names of all twelve months
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  var months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'];
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  //thee variables used for getting timestamp time
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  var hrs = a.getHours(),
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    min = a.getMinutes(),
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    sec = a.getSeconds();
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  //improving readability: adding leading zero
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  if (hrs === 0) { 
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    hrs = "0" + hrs;
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  }
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  if (min < 10) {
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    min = "0" + min;
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  }
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  if (sec < 10) {
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    sec = "0" + sec;
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  }
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  if (!format) {
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    //returns in format 'd M Y, H:i:s'
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    return a.getDate() + ' ' + 
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      months[a.getMonth()] + ' ' + 
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      a.getFullYear() + ', ' + 
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      hrs + ':' + min + ':' + sec;
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  } else if (format === "time") {
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    return hrs + ':' + min + ':' + sec;
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  }
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}

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getTimestamp (date) {
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  return new Date(
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    date.getFullYear(),
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    date.getMonth(),
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    date.getDate(),
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    this.time.hour,
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    this.time.min,
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    0, 0)
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}

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export function toDate(stamp: Time): Date {
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  const { sec, nsec } = stamp;
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  return new Date(sec * 1000 + nsec / 1e6);
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}

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static getDate(timestamp: number): string {
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  return Moment.unix(timestamp).format('DD.MM.YYYY');
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}

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function dateToDateTime(d) {
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  if (d) {
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    var date = moment(d);
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    // return null if not is valid
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    if (!date.isValid()) return null;
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    // return data in datetime format
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    return date.format('YYYY-MM-DD HH:mm:ss');
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  } else {
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    return null;
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  }
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}

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export function timeStampDate(timeStamp) {
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	if (typeof timeStamp === "string") {
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		return timeStamp.replace(/T.+/, "");
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	}
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	return timeStamp;
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}

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export function createDateTimeStamp() {
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  let result = '';
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  const date = new Date();
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  result =
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    date.getFullYear().toString() +
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    (date.getMonth() + 1 < 10 ? '0' + (date.getMonth() + 1).toString() : (date.getMonth() + 1).toString()) +
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    (date.getDate() < 10 ? '0' + date.getDate().toString() : date.getDate().toString()) +
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    '_' +
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    date.getHours().toString() +
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    date.getMinutes().toString() +
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    date.getSeconds().toString();
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  return result;
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}

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export function dateToUTC(timestamp) {
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  const date = new Date(timestamp * 1000);
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  return new Date(date.getUTCFullYear(), date.getUTCMonth(), date.getUTCDate(),
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    date.getUTCHours(), date.getUTCMinutes(),  date.getUTCSeconds());
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}

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export function getDateFromTimestamp(milliseconds) {
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  return moment.utc(parseInt(milliseconds, 10)).toDate();
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}