随時ずいじ
zuiji

Adverb

1. whenever necessary; as needed; as required; as occasion demands

なお、会社かいしゃ説明せつめいかいでも、会社かいしゃ見学けんがく随時ずいじけております。
nao kaishasetsumēkaigodemo kaishakengakuwa zuiji uketsukete orimasu.
Furthermore, even after the company information session, we sometimes hold company tours.
Adverb

2. at any time; at all times

随時ずいじ退席たいせきしてもかまいません。
zuijini taiseki shitemo kamaimasen.
You may leave your seat at will.