diff --git a/BedrockPlugin.cpp b/BedrockPlugin.cpp
index 0c06ddf1b..007261550 100644
--- a/BedrockPlugin.cpp
+++ b/BedrockPlugin.cpp
@@ -13,6 +13,11 @@ BedrockPlugin::~BedrockPlugin() {
     }
 }
 
+bool BedrockPlugin::isValidDate(const string& date)
+{
+    return SREMatch("^(19|2[0-9])\\d\\d-(0[1-9]|1[012])-(0[1-9]|[12][0-9]|3[01])( \\d{2}:\\d{2}:\\d{2})?$", date);
+}
+
 void BedrockPlugin::verifyAttributeInt64(const SData& request, const string& name, size_t minSize) {
     if (request[name].size() < minSize) {
         STHROW("402 Missing " + name);
@@ -41,6 +46,17 @@ void BedrockPlugin::verifyAttributeBool(const SData& request, const string& name
     }
 }
 
+void BedrockPlugin::verifyAttributeDate(const SData& request, const char* key, bool require)
+{
+    if (require && request[key].empty()) {
+        STHROW("402 Missing " + string(key));
+    }
+
+    if (!request[key].empty() && !isValidDate(request[key])) {
+        STHROW("402 Malformed " + string(key));
+    }
+}
+
 STable BedrockPlugin::getInfo() {
     return STable();
 }
diff --git a/BedrockPlugin.h b/BedrockPlugin.h
index 547ef9cc9..6a1892ad6 100644
--- a/BedrockPlugin.h
+++ b/BedrockPlugin.h
@@ -11,10 +11,16 @@ class BedrockPlugin {
     static constexpr int64_t MAX_SIZE_BLOB = 1024 * 1024;
     static constexpr int64_t MAX_SIZE_SMALL = 255;
 
+    /**
+     * Check if a date or datetime is valid
+     */
+    static bool isValidDate(const string& date);
+
     // Utility functions for verifying expected input.
     static void verifyAttributeInt64(const SData& request, const string& name, size_t minSize);
     static void verifyAttributeSize(const SData& request, const string& name, size_t minSize, size_t maxSize);
     static void verifyAttributeBool(const SData& request, const string& name, bool require = true);
+    static void verifyAttributeDate(const SData& request, const char* key, bool require);
 
     BedrockPlugin(BedrockServer& s);
     virtual ~BedrockPlugin();