opening time

1. N-UNCOUNT You can refer to the time that a shop, bank, library, or bar opens for business as its opening time. (商店、银行及酒吧等的)开始营业时间; (图书馆等的)开门时间[also 'the' N]

Shoppers began arriving long before the 10am opening time. 离上午10点开门时间还早，顾客就陆陆续续地来了。

2. N-PLURAL The opening times of a place such as a shop, a restaurant, or a museum are the period during which it is open. (商店、餐馆等的)营业时间; (博物馆等的)开放时间[英国英语]