@ISHOLIDAY — returns 1 if the specified date matches an annual holiday, 0 otherwise. The date may be in any input date format supported by this plugin, and it must be a valid date within the supported range.

Syntax:
%@ISHOLIDAY[date,infmt,country]

datethe date to examine; defaults to today’s date
infmtthe input date format, used to interpret ambiguous dates
countrythe section in Holidays.ini; defaults to the user’s country

@ISHOLIDAY will attempt to read a list of annual holidays from Holidays.ini. If Holidays.ini is not found, if no appropriate section is found in Holidays.ini, or if no holidays are defined within that section, then a default list of United States annual holidays is used. For a list of those default holidays, see the QCAL command. For information on customizing the list, see Holidays.ini Format.

• New: This function does not exist in Take Command.