us-timezones/index.json

A JSON file of continental United States timezone codes mapped to UTC offsets.

{
  "EST": "-05:00",
  "EDT": "-04:00",
  "CST": "-06:00",
  "CDT": "-05:00",
  "MST": "-07:00",
  "MDT": "-06:00",
  "PST": "-08:00",
  "PDT": "-07:00"
}