iwfm.index_date¶

iwfm.index_date(in_date, start_date='10/01/1984')[source]¶

Return the number of days from start_date to in_date.

Parameters:

in_date (str) – date after start_date in MM/DD/YYYY format
start_date (str, default='10/01/1984') – date to count from in MM/DD/YYYY format

Returns:

days – Number of days between two dates

Return type:

int

Raises:

ValueError – If date format is invalid or dates cannot be parsed