Change behavior of skipped and repeated wall times within time zones [CORE6058]

[firebird-automations]

Submitted by: @asfernandes

Within time zones, some wall times does not exist (DST starting) or repeats twice (DST ending).

We should handle that situations using some standard, which a good one could be the ECMAScript standard (JavaScript).

https://raw.githubusercontent.com/tc39/ecma262/master/spec.html

"1:30 AM on November 5, 2017 in America/New_York is repeated twice (fall backward), but it must be interpreted as 1:30 AM UTC-04 instead of 1:30 AM UTC-05"

"2:30 AM on March 12, 2017 in America/New_York does not exist, but it must be interpreted as 2:30 AM UTC-05 (equivalent to 3:30 AM UTC-04)"

Commits: 9c76811

[firebird-automations]

Modified by: @asfernandes

status: Open [ 1 ] => Resolved [ 5 ]

resolution: Fixed [ 1 ]

Fix Version: 4.0 Beta 2 [ 10888 ]

assignee: Adriano dos Santos Fernandes [ asfernandes ]

[firebird-automations]

Modified by: @pavel-zotov

status: Resolved [ 5 ] => Resolved [ 5 ]

QA Status: No test => Done successfully

[firebird-automations]

Modified by: @pavel-zotov

status: Resolved [ 5 ] => Closed [ 6 ]