My antique grandfather clocks looses about 5 minutes a day. How do I adjust time?

Yes chiming clocks always have a switch to turn them off. Often termed a 'night shut off'.

https://www.google.com/search?q=daneker+grandfather+clock+turn+off+chimes

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Hi Pam,
I have a Howard Miller Grandfather clock and the pendulum swings very slowly and from far left to far right travels only about three inches at best. It doesn't need to move any more than that to make the "Verge" move the "Escape Wheel" to rotate the gears to keep the hands moving at the correct tick.
Howard Miller Grandfather Clock

You have to adjust the bob on pendulum. If the clock is slow, the bob on the rod must be pushed up. If the clock is fast, the bob must be pushed down. Do adjustments bit by bit, day by day till the clock is keeping time. If all this does not work, you may need to replace suspension spring (if there is any). If there are no suspension spring, the clock may need proffessional attention.
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Most grandfather/grandmother clocks have an adjustable screw on the weight to slightly extend it or shorten it to satisfy the equation of pendulum swing. the shorter the swing (arc distance) the faster the clock, the longer the swing the longer the time. Check to see if you can adjust the weight up or down on the hanger.

Everybody should know that the coaster clocks discussed here run on batteries. The timing mechanisms, the chimes as well as the pendulum all are powered by a battery. Changing the speed of the pendulum is impossible because there is no adjustment. Besides, it wouldn't matter anyway. The pendulum has now affect on the clock's ability to keep accurate time. It is purely aesthetic. This is a pretty cool looking clock and even has weights, but those are also purely aesthetic and do not move the way a classic grandfather clock weight would move. The moments with these clocks are not designed to be worked on. These clocks are relatively inexpensive (approximately $300) but do add a nice look to your home. Grandfather clocks snobs would say though; this is not a true timepiece. They're right... Sorry.

Rotate the regulation nut on the bottom of the pendulum to the right about 3 turns.

r/
David

First you have to wind up your clock using the key supplied. The pendulum suspension spring should start to swing quite fast. Stop it swinging with your fingers and hook up the pendulum. When done, push the pendulum to whatever side and release it to start the swing - the clock should start ticking in normal order. If there is no special bar on the back of clock movement for adjusting hands, then hands must be adjusted from the dial side by moving minute hand clockwise. Move the minute hand with your finger clockwise to the desired time, at the same time do not catch hour hand, as this may end up with the incorrect time displayed. Rate me, plz.

Just taking a stab that someone replaced the suspension spring with one that is too long, and beyond the pendulum adjustment.

You have to adjust the bob on pendulum. If the clock is slow, the bob on the rod must be pushed up. If the clock is fast, the bob must be pushed down. Do adjustments bit by bit, day by day till the clock is keeping time. If all this does not work, you may need to replace suspension spring (if there is any). If there are no suspension spring, the clock may need proffessional attention.