Job said they’d call today, it’s 2 and they close at 5. Do I call?

I had an interview a few days ago, they told me to call on Wednesday at 9 if I haven’t heard anything from them yet. So I did, and they said I’m a good candidate so they will call me on Friday for more info about starting training. It’s 2pm and they close at 5 and I still haven’t gotten a call yet. Do I call them? I am absolutely desperate for a job and they’re the only ones that even offered me an interview so I really need this.