gs_quant.datetime.date.prev_business_date¶
-
prev_business_date
(dates=datetime.date(2021, 1, 5), calendars=(), week_mask=None)[source]¶ Returns the previous business date for a given date or date series, defaulting to today.
- Parameters
dates (
Union
[date
,Iterable
[date
]]) – The input date or dates, defaults to todaycalendars (
Union
[str
,Tuple
[str
, …]]) – Calendars to use for holidaysweek_mask (
Optional
[str
]) – Which days are considered weekends (defaults to Saturday and Sunday)
- Return type
Union
[date
,Iterable
[date
]]- Returns
A date (if dates is a single date) or tuple of dates, adjusted by the offset of one day.
Example
>>> import datetime as dt >>> prev_bus_date = prev_business_date()