How the countdown works
The date and time you enter are read as local time in the zone you choose, using IANA tzdata 2026e, so a daylight-saving change between now and then is already counted. If the time falls in the hour skipped when clocks go forward, or the hour repeated when they go back, Hourora says so.
The link you copy holds the event name, the date and time and the zone, and nothing else. Anyone who opens it sees the same moment, converted to their own time below the countdown.