Short answer
We don't predict how long anyone will live or when someone will die. No chart can answer that reliably, and a frightening date can do real harm. If you're worried about your health or someone else's, please talk to a doctor. If the question comes from a heavy place, talking to someone you trust can help.
What astrology can offer instead
Planetary cycles are a way to reflect on the chapters of life, not to count its length. A Saturn period can be a time to simplify and look after your health and routines. A Jupiter period can be a time to learn, reconnect and plan ahead. Major Transits shows where those chapters fall for your Moon sign.
Good to know
We never charge for this question. Be wary of anyone who offers a death date or sells a ritual to 'extend' life.