noun-modifying (irregular)
by time; time-based; hourly
Used prenominally to describe things categorized, charged, or arranged according to time periods. Common in contexts like parking fees, wages, or schedules.
This parking lot charges by the hour.
Please check the hourly schedule.
時間制 is a system based on time (e.g., time-based billing), while 時間別 emphasizes differentiation or categorization by time.
Compound of 時間 (time, hour) and 別 (distinction, classification). The exact historical derivation is uncertain, but the word follows a productive pattern of noun+別 meaning 'by X' or 'according to X'.