The DevExpress ASP.NET Gantt control allows you to configure work and non-work time intervals.
The work time settings are stored in the WorkTimeRules collection. The following rules are available:
Each rule can contain work time ranges and recurrence settings.
The WorkTimeRanges property provide access to a collection of WorkTimeRange objects that specify work time intervals (for example, 9.00-13.30 and 14.30-18.00).
The Recurrence property allows you to configure a rule’s reoccurrence settings (for example, occurrences count and periodicity).
Note that the ASPxGantt control highlights working hours in timescale only when the "Hours" scale is visible.