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Javascript convert string to date how to#
Javascript convert string to date iso#
Javascript convert string to date plus#

Per the MDN guidance, there are two additional methods that can be used to obtain a numeric representation of a given date. Convert a date String into a UNIX timestamp This String stands for Aug15:00 PM UTC, and the return value represents the number of milliseconds between that date and January 1st, 1970 00:00 AM UTC.

Javascript convert string to date plus#

In the above example the year was specified with 6 digits and a plus operator at the beginning. As this represents the starting value for the timestamp comparison, a zero is returned. In the above example only the year is specified, causing the timestamp to default to Midnight, January 1st, 1970.

Javascript convert string to date how to#

Basic examplesīelow are some basic examples of how to use Date.parse() to parse a date string: const unixZeroT = Date.parse('1970') Ĭonsole.log(unixZeroT) // expected output: 0 2020) or 6 decimal digits with a + or – operator attached. Years can be passed in as four decimal digits (i.e. If the value specified is invalid for any of the portions of the timestamp string (e.g. the month will be January if no month is provided, the time will be midnight if no timestamp is provided). If a value is not provided in the input string, it will be given its minimum value (i.e. More about the Date Time String Format can be found here.Īt a minimum, the year is mandatory.

Z – the literal character Z, which is used to mark the end of the timestamp.

ss.sss – The current seconds and milliseconds (e.g.

mm – The current minute of the hour, with a leading 0 where needed (e.g.

HH – The current hour, in 24 hour format (e.g.

T – the literal character T, which is used to mark the beginning of the timestamp.

DD – The current day of the month, with a leading 0 (e.g.

MM – the current month, with a leading 0 (e.g.

YYYY – the current year, in four digits (e.g.

The characters represent the following data:

Javascript convert string to date iso#

The ISO 8601 date format is as follows: YYYY-MM-DDTHH:mm:ss.sssZ. Note – different browsers may support other formats in addition to ISO 8601. This method accepts only a single parameter:ĭateString – A string representing a date in the ISO 8601 calendar date extended format. The Date.parse() method has the following syntax: There are still many differences in how different hosts parse date strings, therefore date strings should be manually parsed (a library can help if many different formats are to be accommodated).” In recognition of this, we provide some other options below under Convert a date String into a UNIX timestamp. If the string provided is invalid, or is not recognized as a date format for some reason, the Date.parse() method returns NaN.Īccording to MDN, it is not recommended to use reasoning provided is: ”… until ES5, parsing of strings was entirely implementation dependent. The Date.parse() method takes as an argument a string representing a date, and returns the number of milliseconds that have elapsed between January 1, 1970, 00:00:00 UTC and the date provided. These calculations are far easier, more accurate, and written more logically when the underlying date is represented as a Number rather than a string. The Date.parse() method can help while dealing with calculations including dates.