Behavior of Moment Differs from Documentation

[mitsuhiko]

The documentation claims this:

moment.tz("2013-11-18 11:55", "America/Toronto").format();
"2013-11-18T11:55:00-05:00"
moment.tz(new Date(2013, 11, 18), "America/Toronto").format();
"2013-12-18T00:00:00-05:00"

Actual behavior:

moment.tz("2013-11-18 11:55", "America/Toronto").format();
"2013-11-18T06:55:00-05:00"
moment.tz(new Date(2013, 11, 18), "America/Toronto").format();
"2013-12-17T19:00:00-05:00"

It would appear the moment object itself is somehow assuming local time?

[jzernisch]

Yes, it seems like it interprets the first parameter as local time. For me (sitting in Germany), it is:

moment.tz("2013-11-18 11:55", "America/Toronto").format();
"2013-11-18T05:55:00-05:00"

But if I provide the ISO-formatted UTC time:

moment.tz("2013-11-18T11:55Z", "America/Toronto").format();
"2013-11-18T06:55:00-05:00"

I would also appreciate a more detailed documentation.

[kroo]

This appears to be mostly correct in the latest release (0.0.3). Most timezones seem to behave consistently with documentation now, but I've run into a strange one:

// Reported examples now work as documented (from San Francisco, anyway)
> moment.tz("2013-11-18 11:55", "America/Toronto").format();
'2013-11-18T11:55:00-05:00'
> moment.tz(new Date(2013, 11, 18), "America/Toronto").format();
'2013-12-18T00:00:00-05:00'

// a few other examples
> moment.tz('2014-01-01', 'America/New_York').format()
'2014-01-01T00:00:00-05:00'
> moment.tz('2014-01-01', 'Europe/London').format()
'2014-01-01T00:00:00+00:00'
> moment.tz('2014-01-01 00:00:00', 'Europe/London').format()
'2014-01-01T00:00:00+00:00'

// However, London seems to be off by an hour, once, in 2012:
> moment.tz('2012-10-27', 'Europe/London').format()
'2012-10-27T00:00:00+01:00'
> moment.tz('2012-10-28', 'Europe/London').format()
'2012-10-28T01:00:00+01:00'
> moment.tz('2012-10-29', 'Europe/London').format()
'2012-10-29T00:00:00+00:00'

[jzernisch]

The last one is just due to daylight saving time. Or what do you find strange here, @kroo?
EDIT: Sorry, misread your post. Yes the 2012-10-28 example is strange.

[tamzinblake]

Just as a side note, the moment-timezone website still seems to be using an older version, which really confused me trying to test in the console.

[timrwood]

This is fixed in #93.

[tamzinblake]

Nice! Thanks

[timrwood]

This is released in 0.1.0.