GMT to CET Time Converter (London to Paris / Berlin)

// Convert current time from GMT (Europe/London) to CET (Europe/Paris)
const now = new Date();
const inCET = new Intl.DateTimeFormat('en-US', {
  timeZone: 'Europe/Paris',
  dateStyle: 'medium',
  timeStyle: 'long'
}).format(now);
console.log(inCET);

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

dt_gmt = datetime.now(ZoneInfo("Europe/London"))
dt_cet = dt_gmt.astimezone(ZoneInfo("Europe/Paris"))
print(f"GMT: {dt_gmt.strftime('%Y-%m-%d %H:%M %Z')}")
print(f"CET: {dt_cet.strftime('%Y-%m-%d %H:%M %Z')}")