My car broke down and then I locked myself out—it's just not my day!

我的汽车抛锚了，我又没带房门钥匙—真是祸不单行！

《牛津词典》

6 hertz-- sorry. This is not my day.

6赫兹-,不好意思，不是这个。

youdao

A: Today is not my day.

今天真倒霉。

youdao

I work at home so I just hoped that my computer would work right and not have a bad hair day also.

VOA: special.2009.05.03

That has to count as the toughest day, not only in my career, but also in the history of that particular presidency.

那可以算得上是最艰难的一天，不仅在我的职业生涯里，在总统任期的历史中,也是最艰难的一天吧。

普林斯顿公开课 - 国际座谈会课程节选

Today is not my lucky day.

今天真是我的倒霉日。

I can't 实战 - SpeakingMax英语口语达人

"I have to say I'm very proud to be the deputy chief constable - we have a very proud record of service - but in terms of the context of these four officers' behaviour, this is not my proudest day, " she said.

BBC: Deputy Chief Constable Judith Gillespie

My commitment and my day does not end with my charity.

CNN: Once homeless vet's mission to save his brothers-in-arms

It is my job as a father to keep my children safe so I am proud these lessons have stuck in their minds, especially given that these lessons were not so prevalent in my day.

FORBES: 10 Life And Money Lessons For Your Children