副词可以充当时间状语。
例如:
immediately, directly, instantly,early,late,before,later,yet,
already,just,sometimes,often,usually,once,twice、three times...
I came immediately you called.
Directly I walked in the door I smelt smoke.
We will visit the Great Wall tomorrow.
Sometimes I get up early.
The workers usually have lunch at the factory.
Take this medicine twice a day.
副词可以当时间状语,比如他不久就来了,不久是副词做状语
可以,如在I went to Shanghai recently中recently这个副词就是时间状语。