diff --git a/Cargo.toml b/Cargo.toml
index d3bc2c8..11e9681 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,5 +1,5 @@
 [package]
-authors = ["Sakuhl <2012collector@gmail.com>"]
+authors = ["FliegendeWurst <2012gdwu@web.de>", "Sakuhl <2012collector@gmail.com>"]
 name = "wynncraft"
 version = "0.1.0"
 
@@ -9,3 +9,6 @@ reqwest = "0.8.2"
 serde = "1.0.27"
 serde_derive = "1.0.27"
 serde_json = "1.0.9"
+
+[dev-dependencies]
+chrono = "0.4.0"
\ No newline at end of file
diff --git a/examples/last-join.rs b/examples/last-join.rs
new file mode 100644
index 0000000..4d7ccba
--- /dev/null
+++ b/examples/last-join.rs
@@ -0,0 +1,34 @@
+extern crate wynncraft;
+
+extern crate chrono;
+use chrono::prelude::*;
+
+use std::env;
+
+fn main() {
+	let args = env::args().collect::<Vec<_>>();
+	match args.get(1).map(|x| &**x) {
+		Some("player-lastjoin") if args.len() > 2 => {
+			for name in &args[2..] {
+				println!("{}: {:?}", name, wynncraft::player(name).unwrap().last_join_friendly);
+			}
+		},
+		Some("guild-player-lastjoin") if args.len() > 2 => {
+			for guild_name in &args[2..] {
+				for name in wynncraft::guild(guild_name).unwrap().unwrap().members.iter().map(|x| &x.name) {
+					let player = wynncraft::player(name).unwrap();
+					let time = player.last_join.replace(' ', "T") + "+00:00";
+					//println!("parsing {}", time);
+					let joined: DateTime<FixedOffset> = time.parse().unwrap(); // TODO: timezone?
+					let now = Local::now();
+					println!("{}: {:?} -> {:?} days ago",
+						name,
+						player.last_join_friendly,
+						now.signed_duration_since(joined).num_days()
+					);
+				}
+			}
+		},
+		_ => {} // TODO
+	}
+}
\ No newline at end of file
diff --git a/src/lib.rs b/src/lib.rs
index 6ac2291..48ce4b5 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -49,18 +49,6 @@ pub fn guild_list() -> Result<Vec<String>, Error> {
 	}
 }
 
-pub fn guild_by_prefix(prefix: &str) -> Result<Option<GuildEntry>, Error> {
-	let top_100 = guild_leaderboard()?;
-
-	for guild in top_100.data.into_iter() {
-		if guild.prefix.to_lowercase() == prefix.to_lowercase() {
-			return Ok(Some(guild));
-		}
-	}
-
-	Ok(None)
-}
-
 pub fn guild_leaderboard() -> Result<Top100Guilds, Error> {
 	let resp = reqwest::get("https://api.wynncraft.com/public_api.php?action=statsLeaderboard&type=guild&timeframe=alltime")?.error_for_status()?.text()?;
 
@@ -238,9 +226,4 @@ mod tests {
 	fn guild_list() {
 		::guild_list().unwrap();
 	}
-
-	#[test]
-	fn guild_prefix() {
-		::guild_by_prefix("Two").unwrap();
-	}
 }
\ No newline at end of file
diff --git a/src/main.rs b/src/main.rs
deleted file mode 100644
index 7074486..0000000
--- a/src/main.rs
+++ /dev/null
@@ -1,15 +0,0 @@
-extern crate wynncraft;
-
-use std::env;
-
-fn main() {
-	let args = env::args().collect::<Vec<_>>();
-	match args.get(1).map(|x| &**x) {
-		Some("player-lastjoin") if args.len() > 2 => {
-			for name in &args[2..] {
-				println!("{}: {:?}", name, wynncraft::player(name).unwrap().last_join_friendly);
-			}
-		},
-		_ => {} // TODO
-	}
-}
\ No newline at end of file