Situation: We (A and B) are waiting for a friend (C).
Is the underlined expression okay in the above situation?
A: We've been waiting for C for a long time.
B: I don't know what happened to C.
A: I can't wait any longer. I have to go now.
B: Okay. I'll call you tonight and tell you what time he came here and why he was late.
C has not arrived yet when the above conversation takes place. The arrival of C and the reason for being late will be known later. Can I use the past tense in that case?
Theoretically, yes, but "what time he came here" is not very natural, compared to "showed up" or "arrived."