rust-chrono

When converting a String into a Chrono object you have to know what parts the input format of the string has. The parts are: Date, Time, TimeZone Examples: “2020-04-12” => Date = NaiveDate “22:10” => Time = NaiveTime “2020-04-12 22:10:57” => Date + Time = NaiveDateTime “2020-04-12 22:10:57+02:00” => Date + Time + TimeZone = … Read more

Just use Duration and appropriate operator: use chrono::{Duration, Utc}; fn main() { let dt = Utc::now() + Duration::days(137); println!(“today date + 137 days {}”, dt); } Test on playground.