Noun
time that is free from duties or responsibilities
time available for hobbies and other activities that you enjoy
Source: WordNetspare-time
Service is the rent we pay for being. It is the very purpose of life, and not something you do in your spare time. Marian Wright Edelman
If you have any helpful suggestions I'd be pleased to hear them. If all you can do is make snide insinuations then it would probably benefit all concerned if you bestowed the fruits of your prodigious wit on someone with the spare time to give them the consideration they doubtless deserve. Iain Banks
In capitalist society spare time is acquired for one class by converting the whole life-time of the masses into labour-time. Karl Marx
Lazy people have no spare time. Japanese Proverb
One stupid person asks more than ten wise ones can spare time answering. Finnish Proverb
He who does not know what to do in his spare time is not a businessman. Chinese Proverb