The ferry service of bygone days has been replaced by that tunnel.

往日的渡口已被那个隧道取代。

《新英汉大辞典》

In bygone days, marriage contracts assured wives an allowance for bath money.

往日，婚姻协议要向妻子保证浴费补助。

youdao

Of course he spoke with a conventional sense of duty only, for that sort of wondering had not been unknown to himself in bygone days.

当然，他说这话的时候，是出于一种习惯的责任感，因为在过去他自己也不是没有产生过这样的疑问。

youdao

One would have hoped that these views of working women were relegated to bygone days.

FORBES: Readers Say

Based on artifacts, kings and queens of bygone days seem to have been particularly fond of burlwood items.

NPR: Excerpt: 'A Splintered History Of Wood'

And in those bygone days, children, money actually earned interest which was a major reason to consider means of deferring gain.

FORBES: Sometimes You Should Just Pay The Tax