Cannot schedule publication with UTC + time zones

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 7.2.X, Master
• Fix Version/s: 7.0.0 DXP FP90, 7.0.10.13 DXP SP13, 7.0.X, 7.1.10 DXP FP17, 7.1.10.4 SP4, 7.1.X, 7.2.10 DXP FP4, 7.2.X, 7.3.0 CE GA1, 7.3.10 DXP GA1, Master
• Component/s: Content Publishing > Staging
• Labels:
  • INACTIVE
  • ee-ts
  • liferay-dxp-70-sp13
  • liferay-dxp-71-sp4
  • liferay-fixpack-de-90-7010
  • liferay-fixpack-dxp-17-7110
  • liferay-fixpack-dxp-4-7210
• Branch Version/s:
  7.2.x, 7.1.x, 7.0.x
• Backported to Branch:
  Committed
• Fix Priority: 3
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/81034

To reproduce:
1. enable staging
2. create a publication and schedule it, leave the same day and time but set the time zone to UTC+3
Leave End Date on its default value: No End Date
3. click on Add Event button

Actual result:
WARN is thrown to console. See trace here.

Error:A wrong end date was specified, the scheduled process will never run.
is displayed on the page

Expected:
Being able to set the publication with UTC+

Tested on master 5a23c27