The new FORMAT_TIME() function allows you to format a numeric Unix timestamp as a string, using a strftime-compatible format specifier. You can use this to extract specific values from the event time or other timestamp field, for example:
# Returns UTC weekday of the event, e.g. "Friday". FORMAT_TIME("%A", EVENT_TIMESTAMP())
The new MOD() function computes the remainder of division of two numbers. This is similar to the modulo
% operator in most computing languages.