This provides an incredibly simple way to iterate over calendar date ranges. Although it's easy few lines to add in place as needed, it can be preferable to have a reliable standalone module for such functionality when used frequently. The heavy lifting under the hood is handled by the legendary chrono library.
Basically, provided the start/stop bounds of a date range, iterate from start to end, both inclusive.
rust
use date_iter::{Date, date_iter};
for date in date_iter(Date::from_ymd(2020, 12, 4), Date::from_ymd(2020, 12, 8)) {
println!("{}", date);
}