Final answer:
The commencement date is when the work began and is important for determining the starting time for a mechanic's lien.
Step-by-step explanation:
When determining the starting time for a mechanic's lien, it is important to know when the work began, known as the commencement date. The commencement date is crucial because it determines the timeframe within which a mechanic's lien can be filed. For example, if the work began on January 1st, the mechanic's lien must be filed within a specific number of days, typically 60 or 90 days, from that date. Failure to file within the specified timeframe may result in the loss of lien rights.
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