diff --git a/libimagtimeui/Cargo.toml b/libimagtimeui/Cargo.toml
index 21a4bbb8..f4ea5efa 100644
--- a/libimagtimeui/Cargo.toml
+++ b/libimagtimeui/Cargo.toml
@@ -4,6 +4,7 @@ version = "0.1.0"
 authors = ["Matthias Beyer <mail@beyermatthias.de>"]
 
 [dependencies]
+clap = "2.1.1"
 lazy_static = "0.1"
 log = "0.3"
 chrono = "0.2"
diff --git a/libimagtimeui/src/cli.rs b/libimagtimeui/src/cli.rs
new file mode 100644
index 00000000..86a69f5b
--- /dev/null
+++ b/libimagtimeui/src/cli.rs
@@ -0,0 +1,23 @@
+use clap::{Arg, ArgMatches, App, SubCommand};
+
+pub fn build_datetime_cli_component<'a, 'b>() -> Arg<'a, 'b> {
+    Arg::with_name(datetime_arg_name())
+        .short(datetime_arg_short())
+        .long(datetime_arg_long())
+        .takes_value(true)
+        .multiple(false)
+        .help("Specify a DateTime")
+}
+
+pub fn datetime_arg_name() -> &'static str {
+    "datetime"
+}
+
+pub fn datetime_arg_long() -> &'static str {
+    "datetime"
+}
+
+pub fn datetime_arg_short() -> &'static str {
+    "T"
+}
+
diff --git a/libimagtimeui/src/lib.rs b/libimagtimeui/src/lib.rs
index cb24a50f..4486eef9 100644
--- a/libimagtimeui/src/lib.rs
+++ b/libimagtimeui/src/lib.rs
@@ -1,10 +1,12 @@
 extern crate chrono;
+extern crate clap;
 extern crate regex;
 #[macro_use] extern crate lazy_static;
 #[macro_use] extern crate log;
 
 #[macro_use] extern crate libimagerror;
 
+pub mod cli;
 pub mod date;
 pub mod datetime;
 pub mod parse;