Add Каварна (Болгария) to your list and use my-locations table to visually convert it's time to another timezone or city time.
Mouse over the colored hour-tiles and glance at the hours selected by the column.

Current time zone for Каварна (Болгария) is EEST, whose offset is GMT+3 from Greenwich Mean Time (GMT).

The IANA timezone identifier for Каварна, Болгария is "Europe/Sofia"

DST started on Sunday, March 31 2024 at 3:00 am local time, when time in Каварна moved forward 1 hour to 4:00 am.
DST ends on Sunday, October 27 2024 at 4:00 am local time, when time in Каварна moves back 1 hour to 3:00 am.