diff --git a/litecord/blueprints/user/billing_job.py b/litecord/blueprints/user/billing_job.py
index 79ffe48..a89de2e 100644
--- a/litecord/blueprints/user/billing_job.py
+++ b/litecord/blueprints/user/billing_job.py
@@ -10,6 +10,7 @@ from litecord.blueprints.user.billing import (
 )
 
 from litecord.snowflake import snowflake_datetime
+from litecord.types import MINUTES
 
 log = Logger(__name__)
 
@@ -24,8 +25,8 @@ THRESHOLDS = {
 
 
 async def _resched(app):
-    log.debug('waiting 2 minutes for job.')
-    await sleep(120)
+    log.debug('waiting 30 minutes for job.')
+    await sleep(30 * MINUTES)
     app.sched.spawn(payment_job(app))
 
 
diff --git a/litecord/types.py b/litecord/types.py
index ed2b366..8b3a5bf 100644
--- a/litecord/types.py
+++ b/litecord/types.py
@@ -1,5 +1,10 @@
+# size units
 KILOBYTES = 1024
 
+# time units
+MINUTES = 60
+HOUR = 60 * MINUTES
+
 
 class Color:
     """Custom color class"""