There is no time limit or predetermined length of stay for any of the animals in our care. (lollypop.org)
Always predetermine the length of the meeting and confirm it when you arrive. (realtormag.realtor.org)
In order to add blocks to the Blockchain, a miner must map an input data set (i.e., the Blockchain, plus a block of the most recent Bitcoin Network transactions and an arbitrary number called a «nonce») to a desired output data set of predetermined length (the «hash value») using the SHA - 256 cryptographic hash algorithm. (sec.gov)