- cross-posted to:
- programmer_humor@programming.dev
- cross-posted to:
- programmer_humor@programming.dev
TIL: Sweden had February 30 in 1712 https://en.wikipedia.org/wiki/1712_in_Sweden , so I decided to see how chrono handled that.
use chrono::TimeZone;
use chrono_tz::Europe::Stockholm;
fn main() {
let feb30 = Stockholm.ymd(1712,2,30);
println!("Date: {:?}", feb30);
}
target/debug/feb30
thread 'main' panicked at /home/snaggen/.cargo/registry/src/index.crates.io-6f17d22bba15001f/chrono-0.4.34/src/offset/mod.rs:252:40:
No such local time
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
Result (as expected): Not well! 😄
I also tested Java with
ZonedDateTime feb30 = ZonedDateTime.of(1712,2,30, 0,0,0,0, ZoneId.of("Europe/Stockholm"));
with simmilar result
java.time.DateTimeException: Invalid date 'FEBRUARY 30'
So, lets take a minute of silence for all the programmers of history related software, may the spagetti monster have mercy on their souls.
I wasn’t clear enough. But in a contry where the sun rise at 20:00, the weekday looks like:
And phares like "let’s meet on Tuesday“ without hour indication could either mean end of day 1 or start of day 2. Likewise "let’s meet the 20th” (assuming the 20th is a Tuesday) could either mean end of day 1 or beggining of day 2.
–
And alternative be to have
Which solve the issue of "let’s meet on Tuesday”, but not “let’s meet the 20th”.