Daylight Saving Time(DST) problem

[ynoval]

Due to DST the hour change in my country (Cuba) from GMT -5 to GMT -4 last saturday (March 11) - sunday(March 12)
https://www.timeanddate.com/time/dst/2017.html

But if I execute in Chrome Console the following commads the current week is not end at saturday as I expect it

Previous week is OK

moment().add(-1, 'week').startOf('week')
Moment {_isAMomentObject: true, _isUTC: false, _pf: Object, _locale: Locale, _d: Sun Mar 05 2017 00:00:00 GMT-0500 (CST)…}
moment().add(-1, 'week').endOf('week')
Moment {_isAMomentObject: true, _isUTC: false, _pf: Object, _locale: Locale, _d: Sat Mar 11 2017 23:59:59 GMT-0500 (CST)…}

Current Week # (Problem!!)

moment().startOf('week')
Moment {_isAMomentObject: true, _isUTC: false, _pf: Object, _locale: Locale, _d: Sun Mar 12 2017 01:00:00 GMT-0400 (CDT)…}
moment().endOf('week')
Moment {_isAMomentObject: true, _isUTC: false, _pf: Object, _locale: Locale, _d: Sun Mar 19 2017 00:59:59 GMT-0400 (CDT)…}

Next Week (OK)

moment().add(1, 'week').startOf('week')
Moment {_isAMomentObject: true, _isUTC: false, _pf: Object, _locale: Locale, _d: Sun Mar 19 2017 00:00:00 GMT-0400 (CDT)…}
moment().add(1, 'week').endOf('week')
Moment {_isAMomentObject: true, _isUTC: false, _pf: Object, _locale: Locale, _d: Sat Mar 25 2017 23:59:59 GMT-0400 (CDT)…}

the problem is just on this week the DST apply

Other information

console.log( (new Date()).toString())
Fri Mar 17 2017 19:35:32 GMT-0400 (CDT)

console.log((new Date()).toLocaleString())
3/17/2017, 7:36:00 PM

console.log( (new Date()).getTimezoneOffset())
240

console.log( navigator.userAgent)
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.2924.87 Safari/537.36

console.log(moment.version)
"2.17.1"

Regards
Yo.

[icambron]

Yeah, startOf and endOf are buggy with DSTs. Going to close this as a duplicate of #2749 because I suspect it's the same issue.