As is, Jott cannot handle the fact that you simply want it to DO something at a particular time. It translates your request into a NOUN (event).. rather than leave the Nouns to you. What is worse, when Jott prompts you for a Reminder it Seems to be asking for a time to be reminded.. and does not mention that it views your request as a statement of an Event. Here is the Demo from the Jott web site:

Note the last (circled line): Jott's summary of just what happened and what Jott will do. Jott is not a Calendar or Event service, and yet in regards to Reminders, it assumes your Jotts are events.
Say you wanted a text reminder to move your car in 15 minutes. If you asked Jott for the reminder, it would immediately send you the word. Jott provides for a 15 minute "Snooze" -- which wouldn't be necessary if it simply sent the reminder on time. And it will require 2 phone texts (to and fro Jott).
For this to be fixed, Jott needs a "higher level" of translation. It's not enough that it can transcribe your words--it needs to UNDERSTAND what you mean by REMINDER. But unless Jott changes this Reminder System, you will have to get around it by requesting a reminder 15 minutes LATER THAN when you want it. Then, when Jott does its 15 minutes early-Big Brother-Father Knows Best translation, it will come out at the right time.
Here are 2 screens: one of me setting a Reminder for 5:30pm, and of me receiving the reminder at 5:15pm

