make days-community use Warsaw TZ by default

src/days.rs

@@ -1,8 +1,9 @@
 use chrono::{NaiveDate, Utc};
+use chrono_tz::Europe::Warsaw;
 
 pub fn days_of_community_existence() -> i64 {
     let formation = NaiveDate::from_ymd_opt(2020, 6, 7).unwrap();
-    let today = Utc::now().date_naive();
+    let today = Utc::now().with_timezone(&Warsaw).date_naive();
 
     today.signed_duration_since(formation).num_days()
 }