it's time - Grammar

Fuente: http://mbonillo.xavierre.com/httpdocs/gramatica/itstime.html

SUBJUNCTIVE: IT'S TIME
(Ya es hora de que + subjuntivo)

• Esta expresión que denota cierta impaciencia, puede ir seguida de tres estructuras:

It's time + infinitivo con to

It's time to go to work.
(Ya es hora de que vayamos a trabajar.)

It's time to start playing.
(Ya es hora de que empecemos a jugar.)

It's time for + objeto + infinitivo con to

It's time for him to go to work.
(Ya es hora de que se vaya a trabajar.)

It's time for the teams to start playing.
(Ya es hora de que los equipos empiecen a jugar.)

Con pasado, a menudo se utiliza para expresar reproche o crítica.

It's time + sujeto + past

It's time we went to work.
It's about time we went to work.
It's high time we went to work.
(Ya es hora de que vayamos a trabajar.)

Isn't it time the teams started playing?
Isn't it about time the teams started playing?
Isn't it high time the teams started playing?
(¿No es hora ya de que los equipos empiecen a jugar?)