term time
US /ˈtɜːrm taɪm/
UK /ˈtɜːrm taɪm/

1.
período lectivo, trimestre
the period during which a university, college, or school is open and instruction is given
:
•
Students usually go home during the holidays, but stay at university during term time.
Los estudiantes suelen ir a casa durante las vacaciones, pero se quedan en la universidad durante el período lectivo.
•
During term time, the library is open until midnight.
Durante el período lectivo, la biblioteca está abierta hasta medianoche.