Sleeping
Assuming that you mean 8:30 and not 8.30 (which is actually 8:18), there are (8.5 + 24k) hours, where k is any integer.
No,12 hours apart.2*12=24 there are 24 hours in one day.
If you mean 5/8 of an hour then it is 37.5 minutes
It is 8 hours.
Ah means Ampere hours. A 4 Ah battery can release 4 amps for one hour, or 1 amp for 4 hours, or 0.5 amps for 8 hours, or 8 amps for 0.5 hours.
An 8 Amp hr battery would last approximately 106.67 hours with a 75mA current draw. This is calculated by dividing the battery capacity (in Amp hours) by the current draw (in mA) and converting the result to hours.
To calculate the amp-hour rating, first divide the power (23 watts) by the voltage (12 volts) to get the current in amps (1.92 A). Then, multiply the current by the time (4 hours) to get 7.68 amp-hours. Therefore, a 12-volt battery powering a 23-watt load for 4 hours would require a battery with a capacity of at least 7.68 amp-hours.
8 hours and one quarter of an hour. So that is 8 hours and 15 minutes.
It means the battery will operate a device for 8 hours before recharging is needed.
Sleeping
8 to 10 hours 8 to 10 hours 8 to 10 hours 8 to 10 hours 8 to 10 hours 8 to 10 hours 8 to 10 hours 8 to 10 hours 8 to 10 hours 8 to 10 hours 8 to 10 hours 8 to 10 hours 8 to 10 hours 8 to 10 hours 8 to 10 hours 8 to 10 hours 8 to 10 hours 8 to 10 hours
Amp hours is a battery rating. It means that this battery can sustain 1 amp for 8 hours up to 8 amps for 1 hour. Depending on what the current draw is on the load will determine the length of time the battery will last.
8 amp in all but #9 and #10 , they get 16 amp
It means they're happy 8 hours a day.
England is at (Greenwich Mean Time) GMT. California is (Greenwich Mean Time) GMT -8 hours, ie. 8 hours behind Greenwich, England. Malibu is 8 hours behind England. (Daylight savings not taken into account.)
Belfast is at (Greenwich Mean Time) GMT. San Diego is (Greenwich Mean Time) GMT -8 hours, ie. 8 hours behind Greenwich, England. San Diego is 8 hours behind Belfast. (Daylight savings not taken into account.)