DST does not influence UnixTime or Seconds since Epoch

Seconds since Epoc or Unixtime is ever increasing value and it remains stable (except for leap second). Daylight Savings changes does not affect it because Unixtime is based on UTC while DST is a local change applied to the timezone. So an application using Unixtime as a reference is not directly influenced by DST. Spent few hours today realizing this.