Add Сантьяго-де-лос-Трейнта-Кабальерос (Доминиканская Республика) to your list and use my-locations table to visually convert it's time to another timezone or city time.
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Current time zone for Сантьяго-де-лос-Трейнта-Кабальерос (Доминиканская Республика) is AST, whose offset is GMT-4 from Greenwich Mean Time (GMT).

The IANA timezone identifier for Сантьяго-де-лос-Трейнта-Кабальерос, Доминиканская Республика is "America/Santo_Domingo"

It currently does not observe Daylight Savings Time.