Average hours per day (American Time Use Survey) This term refers to the average number of hours spent in a 24-hour day (between 4 a.m. on the diary day and 4 a.m. on the interview day) doing a specified activity.
Usually a cats first season is somewhere between 4 and 10 months old with average age around six months. Siamese and Burmese cats are quite precocious and will often have their first season at 4 months of age.
Reproductive Maturity. Female kittens do not begin spraying until they have become fully sexually mature, which occurs with the first heat cycle at roughly 6 months old. However, your cat can reach reproductive maturity as early as 4 months and as late as 1 year.