Montana Title 39. Labor § 39-2-602. Term of hiring

(1) A servant is presumed to have been hired for such length of time as the parties adopt for the estimation of wages. A hiring at a yearly rate is presumed to be for 1 year; a hiring at a daily rate, for 1 day; a hiring by piecework, for no specified term.

(2) In the absence of any agreement or custom as to the term of service, the time of payment, or rate or value of wages, a servant is presumed to be hired by the month at a monthly rate of reasonable wages, to be paid when the service is performed.