Live Dragonball Z runs on realistic time. Some RPG's turn real-time days into game-time weeks. Not so here. Minute for minute, day for day, Live Dragonball Z runs along the same time frame as your real life.
Every activity takes a full day to complete. A day is considered to be a 24 hour time period. For simplicity, when a Form is received it is treated as if that activity started on that date at 12:01 AM. Your activity will officially end at 12:00 AM (Midnight) on your end date. For example, if you send a form to Gravity Train for seven days on the 5th of March, your Training will officially start at 12:01 AM, March 5th, no matter what time you actually sent it, and your Training will end on March 11th at 12:00 AM (Midnight). Notice that if you do the actual MATH involved in those dates, you come up with an answer of six. In order to see the full seven days, you need to remember that Day 1 starts at 12:01 AM and Day 7 ends at 12:00 AM.
The one and only exception to this rule are Universal Role-Plays (URPs). When these colossal events are taking place, one game-day equals one real-life-week.