# Check whether a DateTime is a "Business DateTime"

`IsBusinessDateTime`

`GET /api/calendars/businessday/{scope}/{code}`

- [OpenAPI fragment](https://www.lusid.com/docs/api/lusid/endpoints/calendars/IsBusinessDateTime.json)
- [Rendered page](https://www.lusid.com/docs/api/lusid/endpoints/calendars/IsBusinessDateTime)

A Business DateTime is defined as a point in time that:
    Does not represent a day that overlaps with the calendars WeekendMask
    If the calendar is a "Holiday Calendar" Does not overlap with any dates in the calendar
    If the calendar is a "TradingHours Calendar" Does overlap with a date in the calendar
            
All dates specified must be UTC and the upper bound of a calendar is not inclusive 
e.g. From: 2020-12-25-00-00-00 
     To: 2020-12-26-00-00-00
IsBusinessDay(2020-12-26-00-00-00) == false

## Referenced schemas

- [IsBusinessDayResponse](https://www.lusid.com/docs/api/lusid/schemas/IsBusinessDayResponse.txt)

[< Calendars](https://www.lusid.com/docs/api/lusid/endpoints/calendars/llms.txt)