For life!
Senators can be in office for how ever long they are elected for but the election for new senators is every 6 years.
Congressmen and Senators in the US have no term limits.
Presidents can stay in office for two terms but senators can stay in office as long As they want if they keep getting re-elected.
For life unless they get expelled by someone
The senators in the parliaments of the various countries are different from the ancient Roman senators in that modern day senators are elected officials while the ancient senators were appointed or voted in by other members of the senate. The modern senators must be repeatedly elected in order to stay in office while their ancient counterparts were senators for life, providing they were not expelled from the senate for some gross misdeed.
They can stay in office has long as the prime minster 4 years. And can serve as many times as long as there re elected
they stay in office for two days.
The pope will stay in office till his death or if he resigns. Which is highly unlikely. Hope that helps!
Australian senator can stay as long as people keep voting for them.
2 years
6 years
For as long as they want to or for as long as dthey can