diff --git a/Cargo.lock b/Cargo.lock
index 2072b15..c16a4e9 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -568,7 +568,7 @@ dependencies = [
  "postcard",
  "serde",
  "serde_json",
- "spacepackets 0.5.0 (git+https://egit.irs.uni-stuttgart.de/rust/spacepackets.git?rev=1e9079307273e414a6333bf575322c1eb302c93e)",
+ "spacepackets 0.5.0 (git+https://egit.irs.uni-stuttgart.de/rust/spacepackets.git?rev=74e489bd074)",
  "zerocopy",
 ]
 
@@ -698,7 +698,7 @@ dependencies = [
 [[package]]
 name = "spacepackets"
 version = "0.5.0"
-source = "git+https://egit.irs.uni-stuttgart.de/rust/spacepackets.git?rev=1e9079307273e414a6333bf575322c1eb302c93e#1e9079307273e414a6333bf575322c1eb302c93e"
+source = "git+https://egit.irs.uni-stuttgart.de/rust/spacepackets.git?rev=74e489bd074#74e489bd074bbd8139a1c8740aa1670a2ef9b671"
 dependencies = [
  "chrono",
  "crc",
diff --git a/satrs-core/Cargo.toml b/satrs-core/Cargo.toml
index 2ee6224..88bd2c4 100644
--- a/satrs-core/Cargo.toml
+++ b/satrs-core/Cargo.toml
@@ -56,7 +56,7 @@ optional = true
 git = "https://egit.irs.uni-stuttgart.de/rust/spacepackets.git"
 # path = "../spacepackets"
 # version = "0.4.0"
-rev = "1e9079307273e414a6333bf575322c1eb302c93e"
+rev = "74e489bd074"
 
 default-features = false
 
diff --git a/satrs-core/src/pus/scheduling.rs b/satrs-core/src/pus/scheduling.rs
index e204b95..76507f5 100644
--- a/satrs-core/src/pus/scheduling.rs
+++ b/satrs-core/src/pus/scheduling.rs
@@ -1,14 +1,40 @@
 use crate::pool::StoreAddr;
-use spacepackets::time::cds;
-use spacepackets::time::cds::TimeProvider;
 use std::collections::BTreeMap;
+use spacepackets::time::UnixTimestamp;
 
+#[derive(Debug)]
 pub struct PusScheduler {
-    tc_map: BTreeMap<cds::TimeProvider, StoreAddr>,
+    tc_map: BTreeMap<UnixTimestamp, StoreAddr>,
+    current_time: UnixTimestamp,
+    enabled: bool
 }
 
 impl PusScheduler {
-    pub fn insert_tc(&mut self, time_stamp: TimeProvider, addr: StoreAddr) {
+    pub fn new(init_current_time: UnixTimestamp) -> Self {
+        PusScheduler {
+            tc_map: Default::default(),
+            current_time: init_current_time,
+            enabled: true
+        }
+    }
+
+    pub fn is_enabled(&self) -> bool {
+        self.enabled
+    }
+
+    pub fn enable(&mut self) {
+        self.enabled = true;
+    }
+
+    pub fn disable(&mut self) {
+        self.enabled = false;
+    }
+
+    pub fn update_time(&mut self, current_time: UnixTimestamp) {
+        self.current_time = current_time;
+    }
+
+    pub fn insert_tc(&mut self, time_stamp: UnixTimestamp, addr: StoreAddr)  {
         self.tc_map.insert(time_stamp, addr);
     }
 }
@@ -19,9 +45,7 @@ mod tests {
     use std::collections::BTreeMap;
 
     #[test]
-    fn wtf() {
-        let scheduler = PusScheduler {
-            tc_map: BTreeMap::new(),
-        };
+    fn basic() {
+        let scheduler = PusScheduler::new();
     }
 }
diff --git a/spacepackets b/spacepackets
index 1e90793..74e489b 160000
--- a/spacepackets
+++ b/spacepackets
@@ -1 +1 @@
-Subproject commit 1e9079307273e414a6333bf575322c1eb302c93e
+Subproject commit 74e489bd074bbd8139a1c8740aa1670a2ef9b671