Timezone database error (Europe/Budapest) - 2

[fzoli]

Description of the Issue and Steps to Reproduce:

I think I have just found a timezone database parse(?) error.

Moment

moment('1890-01-01T00:00:00Z').clone().tz('Europe/Paris').format()
// "1890-01-01T00:09:21+00:09" // CORRECT

moment('1890-01-01T00:00:00Z').clone().tz('Europe/Budapest').format()
// "1890-01-01T01:00:00+01:00" // WRONG
// It should be "1890-01-01T01:16:20+01:16"

Java DateTime API

@Test
public void testParisTime() {
    ZonedDateTime parisTime = OffsetDateTime.parse("1890-01-01T00:00:00Z").atZoneSameInstant(ZoneId.of("Europe/Paris"));
    Assert.assertEquals("1890-01-01T00:09:21+00:09:21", DateTimeFormatter.ISO_OFFSET_DATE_TIME.format(parisTime));
}

@Test
public void testBudapestTime() {
    ZonedDateTime budapestTime = OffsetDateTime.parse("1890-01-01T00:00:00Z").atZoneSameInstant(ZoneId.of("Europe/Budapest"));
    Assert.assertEquals("1890-01-01T01:16:20+01:16:20", DateTimeFormatter.ISO_OFFSET_DATE_TIME.format(budapestTime));
}

From the tzdb-2016j:

Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
Zone	Europe/Budapest	1:16:20 -	LMT	1890 Oct

It means, the tzdb is correct.
I guess the JS code is also correct and the tzdb parser should be fixed (cause 'Europe/Paris' time-zone is well-parsed).

Environment:
Chrome 55 on Ubuntu 14.04.5 LTS
System timezone: Europe/Budapest

console.log( (new Date()).toString()) // Sun Feb 26 2017 11:19:46 GMT+0100 (CET)
console.log((new Date()).toLocaleString()) // 2017. 02. 26. 11:19:46
console.log( (new Date()).getTimezoneOffset()) // -60
console.log( navigator.userAgent) // Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.87 Safari/537.36
console.log(moment.version) // 2.17.1

[maggiepint]

Yes. this is a duplicate of #308. If you use a more current date, not a date that falls in local mean time, everything works.

[fzoli]

Indeed, this is a duplicate. Based on @mj1856's comment, the LMT record is missing.
Thanks for the fast response :)