Guru (Jupiter) mahadasha for Kumbha (Aquarius) Moon sign

In the Vimshottari system a life moves through nine long periods, each ruled by one planet. The planet that rules the period sets the tone of those years: the areas of life that come forward, and the kind of effort that pays.

The Jupiter mahadasha lasts 16 years in full. Most people meet it partway through, so the part they live through can be shorter.

Jupiter stands for wisdom, teachers, children, growth and faith. Its period tends to widen life: learning, guidance, family growth and a stronger sense of meaning.

Counted from Aquarius as the first house, Jupiter rules Pisces and Sagittarius, your 2nd and 11th houses. During its period the matters of both come forward:

The 2nd house is money, savings, speech and family. Its lord's period tends to bring attention to earning and saving, to what you say and how, and to the family you live with.

The 11th house is income, gains, friends and hopes. Its lord's period tends to bring returns on earlier effort, helpful networks and wishes moving closer.

Jupiter is neither friend nor enemy to Saturn, the lord of Aquarius. Its period tends to give what you put into it; the planets' places in your own chart decide more than this relationship does.

Which mahadasha you are in, and when it began, depends on the Moon's nakshatra at the moment you were born, so it is personal to you. Even within the Jupiter mahadasha, where the planet sits in your own chart and the sub-periods inside it shape the years more than your Moon sign alone.