diff --git a/common/time.py b/common/time.py
new file mode 100644
index 0000000000..8dac17815d
--- /dev/null
+++ b/common/time.py
@@ -0,0 +1,3 @@
+import datetime
+
+MIN_DATE = datetime.datetime(year=2023, month=6, day=1)
diff --git a/common/util.cc b/common/util.cc
index a527adcbef..55a8b1fb3e 100644
--- a/common/util.cc
+++ b/common/util.cc
@@ -260,7 +260,7 @@ struct tm get_time() {
 bool time_valid(struct tm sys_time) {
   int year = 1900 + sys_time.tm_year;
   int month = 1 + sys_time.tm_mon;
-  return (year > 2021) || (year == 2021 && month >= 6);
+  return (year > 2023) || (year == 2023 && month >= 6);
 }
 
 }  // namespace util
diff --git a/release/files_common b/release/files_common
index af1fca176f..e90a8e083b 100644
--- a/release/files_common
+++ b/release/files_common
@@ -35,6 +35,7 @@ common/filter_simple.py
 common/stat_live.py
 common/spinner.py
 common/text_window.py
+common/time.py
 
 common/kalman/.gitignore
 common/kalman/*
diff --git a/selfdrive/boardd/set_time.py b/selfdrive/boardd/set_time.py
index 2159eba5eb..93453dcd97 100755
--- a/selfdrive/boardd/set_time.py
+++ b/selfdrive/boardd/set_time.py
@@ -3,7 +3,7 @@ import os
 import datetime
 from panda import Panda
 
-MIN_DATE = datetime.datetime(year=2023, month=4, day=1)
+from common.time import MIN_DATE
 
 def set_time(logger):
   sys_time = datetime.datetime.today()
diff --git a/selfdrive/thermald/thermald.py b/selfdrive/thermald/thermald.py
index aa78978619..b10e87d404 100755
--- a/selfdrive/thermald/thermald.py
+++ b/selfdrive/thermald/thermald.py
@@ -13,6 +13,7 @@ import psutil
 import cereal.messaging as messaging
 from cereal import log
 from common.dict_helpers import strip_deprecated_keys
+from common.time import MIN_DATE
 from common.filter_simple import FirstOrderFilter
 from common.params import Params
 from common.realtime import DT_TRML, sec_since_boot
@@ -272,7 +273,7 @@ def thermald_thread(end_event, hw_queue):
 
     # Ensure date/time are valid
     now = datetime.datetime.utcnow()
-    startup_conditions["time_valid"] = (now.year > 2020) or (now.year == 2020 and now.month >= 10)
+    startup_conditions["time_valid"] = now > MIN_DATE
     set_offroad_alert_if_changed("Offroad_InvalidTime", (not startup_conditions["time_valid"]))
 
     startup_conditions["up_to_date"] = params.get("Offroad_ConnectivityNeeded") is None or params.get_bool("DisableUpdates") or params.get_bool("SnoozeUpdate")