"Summer is a season."
Translation:Lato to pora roku.
It doesn't apply to every sentence with "time". It's probably the most commonly used in phrase "It's high time - Najwyższa pora (najwyższy czas)". e.g. It's high time you did it. - Najwyższa pora żebyś to zrobił.
Another use - Jest późna pora - It's late.
Noon is my favourite time of the day. - Południe to moja ulubiona pora dnia.
So, actually, it does not exactly means time :D I am sorry. It's not so commonly used, though.
It's time for lunch/dinner! (point in time) - Pora na obiad!
It's time to play! (point in time) - Pora na zabawę/rozrywkę!
rain season (span of time/period) - pora deszczowa
season (span of time/period) - pora roku (wiosna, jesień)
Do you have time? - Masz/Macie czas?/Ma pan/pani czas?