JavaScript Date UTC() method

Definition and usage

UTC() The method returns the milliseconds between the specified date and midnight on January 1, 1970 based on world time.

Tip：Coordinated Universal Time (UTC) is the time set by the world time standard.

Note：UTC time is the same as GMT time (Greenwich Mean Time).

Example

Example 1

Return the milliseconds between the specified date and midnight on January 1, 1970：

var d = Date.UTC(2012, 02, 30);

Try it yourself

Example 2

Create a date object using UTC time instead of local time：

var d = new Date(Date.UTC(2012, 02, 30));

Try it yourself

Syntax

Date.UTC(year, month, day, hours, minutes, seconds, millisec)

Parameter value

Parameter Description
year Required. Represents the four-digit year value, allowing negative values.
month

Required. Represents the integer of the month.

The expected value is 0-11, but other values are allowed：

  • -1 will cause the last month of the previous year
  • 12 will cause the first month of the next year
  • 13 will cause the second month of the next year
day

Optional. Integer, representing the day of the month.

The expected value is 1-31, but other values are allowed：

  • 0 will cause the last hour of the previous month
  • -1 will cause one hour before the last hour of the previous month

If a month has 31 days：

  • 32 will cause the first day of the next month

If a month has 30 days：

  • 32 will cause the second day of the next month
hour

Optional. Default is 0. Represents the integer part of hours.

The expected value is 0-23, but other values are allowed：

  • -1 will cause the last hour of the previous day
  • 24 will cause the first hour of the next day
min

Optional. Default is 0. Represents the integer part of minutes.

The expected value is 0-59, but other values are allowed：

  • -1 will cause the last minute of the previous hour
  • 60 will cause the first minute of the next hour
sec

Optional. Default is 0. Represents the integer part of seconds

The expected value is 0-59, but other values are allowed：

  • -1 will cause the last second of the previous minute
  • 60 will cause the first second of the next minute
millisec

Optional. Default is 0. Represents the integer part of milliseconds

The expected value is 0-999, but other values are allowed：

  • -1 will cause the last millisecond of the previous second
  • 1000 will cause the first millisecond of the next second

Technical details

Return value： A number representing the milliseconds between the specified date and time and midnight on January 1, 1970.
JavaScript version： ECMAScript 1

Browser Support

Method Chrome IE Firefox Safari Opera
UTC() Support Support Support Support Support

Related Pages

Tutorial:JavaScript Date

Tutorial:JavaScript Date Format