Question

139

Which date formats are IETF-compliant RFC 2822 timestamps?

rated 0 times [ 142] [ 3] / answers: 1 / hits: 42747 / 12 Years ago, sat, february 16, 2013, 12:00:00

I need to parse dates in JavaScript. The format is

[2 digits day]/[2 digits month]/[4 digits year] [2 digits hour (24 mode)]:[2 digits minute]

For example, 16/02/2013 21:00

But if I do new Date('16/02/2013 21:00').toString(), it gives 'Wed Apr 02 2014 21:00:00 GMT+0200 (Hora de verano romance)'.

I guess that's because my dates don't follow IETF RFC 2822 Date and Time Specification. Then, I should convert my string, and I want to convert it to the most similar compliant format (because it should be easier to convert). But https://www.rfc-editor.org/rfc/rfc2822#page-14 is hard to understand, so I don't know which is the most similar format.

Is there a list with examples of the allowed formats?

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jazminuniquer

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answered 12 Years ago leandraannabellar · Accepted Answer

MSDN has several examples of valid date formats:

document.writeln((new Date(2010)).toUTCString()); 



document.writeln((new Date(2010-06)).toUTCString());



document.writeln((new Date(2010-06-09)).toUTCString());



 // Specifies Z, which indicates UTC time.

document.writeln((new Date(2010-06-09T15:20:00Z)).toUTCString());



 // Specifies -07:00 offset, which is equivalent to Pacific Daylight time.

document.writeln((new Date(2010-06-09T15:20:00-07:00)).toGMTString());



// Specifies a non-ISO Long date.

document.writeln((new Date(June 9, 2010)).toUTCString());



// Specifies a non-ISO Long date.

document.writeln((new Date(2010 June 9)).toUTCString());



// Specifies a non-ISO Short date and time.

document.writeln((new Date(6/9/2010 3:20 pm)).toUTCString());



// Output:

// Fri, 1 Jan 2010 00:00:00 UTC

// Tue, 1 Jun 2010 00:00:00 UTC

// Wed, 9 Jun 2010 00:00:00 UTC

// Wed, 9 Jun 2010 15:20:00 UTC

// Wed, 9 Jun 2010 22:20:00 UTC

// Wed, 9 Jun 2010 07:00:00 UTC

// Wed, 9 Jun 2010 07:00:00 UTC

// Wed, 9 Jun 2010 22:20:00 UTC

Gotchas

There's a matrix of cross-browser inconsistencies as well.

References

Same Markup: Writing Cross-Browser Code – IEBlog

Loading Javascript files in parallel – Kristoffer's tidbits