https://zulip.com/help/view-the-exact-time-a-message-was-sent
View the exact time a message was sent | Zulip help center
Hover over the timestamp to the right of the message.
exact timesent zulipviewhelp
https://zulip.com/help/view-messages-sent-by-a-user
View messages sent by a user | Zulip help center
Zulip offers a convenient feature to search all messages sent by any user including yourself.
zulip help centerviewmessages
https://zulip.com/help/verify-your-message-was-successfully-sent
Verify your message was successfully sent | Zulip help center
When you send a message, it first goes to a Zulip server, and then the Zulip server sends it out to all the recipients.
zulip help centerverifysent