Due to non-standard rates of progression through grades in the Coast Guard, you must use the Advanced version of our estimator to properly calculate the required deposit to buy back your time. Please note that Warrant Officers and Officers with pay grade designations O-1E, O-2E, and O-3E may be required to use the Advanced entry method. Below, you will find answers to some common questions about military time. Add military time to one of your lists below, or create a new one. Military time is a way of measuring the time used by the military and other organizations that need to be precise about timekeeping. Your Swedish grandfather will arrive at your local airport at 4 p.m., and you would like to give him the military time so he is not confused. The military observes Daylight Savings Time when it is recognized by the state or country where the time zone is being used. Below are common questions around calculating military time. If you’re on the go and need a printable version of the military time calculator, you can download either of these. Why does the military call this time “Zulu time?” You would think that the world could be divided equally into 24 one-hour equals a day.