invalid time/date format
try https://t.trashchan.xyz/(unix_timestamp)
or https://t.trashchan.xyz/(2018-04-17T14:12:03)
or https://t.trashchan.xyz/(2018-04-17T04)
or https://t.trashchan.xyz/(2018-0417)
all times must be considered UTC

or use this neat form with your event's localtime: