diff --git a/spotproviders/sota.py b/spotproviders/sota.py
index f07a779..56026d1 100644
--- a/spotproviders/sota.py
+++ b/spotproviders/sota.py
@@ -46,7 +46,7 @@ class SOTA(HTTPSpotProvider):
                             comment=source_spot["comments"],
                             sig="SOTA",
                             sig_refs=[SIGRef(id=source_spot["summitCode"], sig="SOTA", name=source_spot["summitName"], activation_score=source_spot["points"])],
-                            time=datetime.fromisoformat(source_spot["timeStamp"]).timestamp())
+                            time=datetime.fromisoformat(source_spot["timeStamp"].replace("Z", "+00:00")).timestamp())
 
                 # Add to our list. Don't worry about de-duping, removing old spots etc. at this point; other code will do
                 # that for us.
diff --git a/spotproviders/wwbota.py b/spotproviders/wwbota.py
index 16b0758..d2d8d11 100644
--- a/spotproviders/wwbota.py
+++ b/spotproviders/wwbota.py
@@ -30,7 +30,7 @@ class WWBOTA(SSESpotProvider):
                     comment=source_spot["comment"],
                     sig="WWBOTA",
                     sig_refs=refs,
-                    time=datetime.fromisoformat(source_spot["time"]).timestamp(),
+                    time=datetime.fromisoformat(source_spot["time"].replace("Z", "+00:00")).timestamp(),
                     # WWBOTA spots can contain multiple references for bunkers being activated simultaneously. For
                     # now, we will just pick the first one to use as our grid, latitude and longitude.
                     dx_grid=source_spot["references"][0]["locator"],
diff --git a/spotproviders/zlota.py b/spotproviders/zlota.py
index 3944201..62103d3 100644
--- a/spotproviders/zlota.py
+++ b/spotproviders/zlota.py
@@ -35,7 +35,7 @@ class ZLOTA(HTTPSpotProvider):
                         comment=source_spot["comments"],
                         sig="ZLOTA",
                         sig_refs=[SIGRef(id=source_spot["reference"], sig="ZLOTA", name=source_spot["name"])],
-                        time=datetime.fromisoformat(source_spot["referenced_time"]).astimezone(pytz.UTC).timestamp())
+                        time=datetime.fromisoformat(source_spot["referenced_time"].replace("Z", "+00:00")).astimezone(pytz.UTC).timestamp())
 
             new_spots.append(spot)
         return new_spots