Partial is the other arm mode that this keypad has. It doesn't have armHome and armNight like some other keypads. You have to choose which one it arms. So, partial is the function defined in the keypad. You have Armed, Partial and Disarmed.
The delayExpire is the time (in epoch) that the delay currently in use will expire. It should be equal to the current date/time. You can convert to real human time here:
That's the site I use to convert from Epoch time to readable time. (epoch time is the number of MS since Jan 1, 1970 00:00:00:0000.)