check all your fuses first this is usually the problem on these.
bad electrical connection.some where.
Check fuses constant hot fuse for memory may be blown
battery
Check all the 20A fuses, and you probably have a coin in your cigarette lighter. If the under dash lights flicker when you push the horn button, and the radio resets it's clock every time you open the door, it is almost definitely just a fuse issue. (this wouldn't have anything to do with the poor starting.)
there is no separate clock battery. the clock has 2 power wires. one to maintain power when the key is off and one to light it when the key is on. if the clock resets to 12:00 or 1:00 every time you start it, try replacing the "dome" fuse in the fuseblock under the hood.
To maintain the clock while disconnected from power, computers have a small "button" battery located on the motherboard. You will need to replace this with a new one.
The cycle resets every month on avrage
every hour the church clock bell rings. every hour your clock gets rung
every time the ball hits the rim, the sclock resets
The ender dragon resets every server restart.
The Moshi Monsters Daily Challenge resets at the same time every 24 hours. So just wait until it resets to play again.
It resets every 12 hours.