MST to EST Time Converter (Denver to New York)

// Convert current time from MST (America/Denver) to EST (America/New_York)
const now = new Date();
const inEST = new Intl.DateTimeFormat('en-US', {
  timeZone: 'America/New_York',
  dateStyle: 'medium',
  timeStyle: 'long'
}).format(now);
console.log(inEST);

# Python 3.9+ using standard zoneinfo
from datetime import datetime
from zoneinfo import ZoneInfo

dt_mst = datetime.now(ZoneInfo("America/Denver"))
dt_est = dt_mst.astimezone(ZoneInfo("America/New_York"))
print(f"MST: {dt_mst.strftime('%Y-%m-%d %H:%M %Z')}")
print(f"EST: {dt_est.strftime('%Y-%m-%d %H:%M %Z')}")