Use human formatted time

Cargo.lock

@@ -306,6 +306,12 @@ version = "0.3.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d231dfb89cfffdbc30e7fc41579ed6066ad03abda9e567ccafae602b97ec5024"
 
+[[package]]
+name = "humantime"
+version = "2.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "135b12329e5e3ce057a9f972339ea52bc954fe1e9358ef27f95e89716fbc5424"
+
 [[package]]
 name = "iana-time-zone"
 version = "0.1.60"
@@ -651,6 +657,7 @@ version = "0.1.0"
 dependencies = [
  "chrono",
  "futures",
+ "humantime",
  "irc",
  "rand",
  "regex",