It's convenient if you want to check and see when the next bus is coming.

你用手机可以查下一趟车什么时候来，非常方便。

youdao

Second, talk to your parents when it is convenient for them.

其次，在父母方便的时候和他们谈谈。

youdao

It is very convenient for passengers to use e-tickets when they are taking high-speed trains.

当乘客乘坐高铁时，使用电子票是非常方便的。

youdao

So it's convenient if you wanna check and see when the next bus is coming.

用手机可以查下一趟车什么时候来，非常方便。

没有智能手机活不了 - SpeakingMax英语口语达人

We must follow it not only when it is convenient, but when fear and danger beckon in a different direction.

FORBES: Justice, Dispensed with an Even Hand

Some might see this crisis-of-faith as very convenient when the show is reaching a point where it can do with or without the character (Jones appears very little this season).

FORBES: Why God Should Let Angus T. Jones Leave 'Two And A Half Men'

And, of course, there is a standing open invitation to President Obama to come back to Ireland whenever is convenient and appropriate and when he so wishes.

WHITEHOUSE: The White House