diff --git a/src/lib.rs b/src/lib.rs
index dcdb111..cf9eb94 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -6,6 +6,7 @@ use crate::ecss::CCSDS_HEADER_LEN;
 use serde::{Deserialize, Serialize};
 
 pub mod ecss;
+pub mod time;
 pub mod tc;
 pub mod tm;
 
diff --git a/src/tc.rs b/src/tc.rs
index 05c2b7d..325f327 100644
--- a/src/tc.rs
+++ b/src/tc.rs
@@ -158,6 +158,8 @@ impl PusTcDataFieldHeader {
 /// This struct models a PUS telecommand and which can also be used. It is the primary data
 /// structure to generate the raw byte representation of a PUS telecommand or to
 /// deserialize from one from raw bytes.
+///
+/// There is no spare bytes support.
 #[derive(PartialEq, Copy, Clone, Serialize, Deserialize, Debug)]
 pub struct PusTc<'slice> {
     pub sph: SpHeader,
diff --git a/src/time.rs b/src/time.rs
new file mode 100644
index 0000000..17f061f
--- /dev/null
+++ b/src/time.rs
@@ -0,0 +1 @@
+trait CcsdsTimeProvider {}
\ No newline at end of file