diff --git a/CMakeLists.txt b/CMakeLists.txt
index 184b0d3..e6a57e7 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -180,6 +180,7 @@ if (JWTPP_WITH_TESTS)
 		tests/hmac.cpp
 		tests/pss.cpp
 		tests/rsa.cpp
+		tests/expire.cpp
 	)
 
 	if (WIN32)
diff --git a/tests/expire.cpp b/tests/expire.cpp
new file mode 100644
index 0000000..668c74a
--- /dev/null
+++ b/tests/expire.cpp
@@ -0,0 +1,71 @@
+  
+// The MIT License (MIT)
+//
+// Copyright (c) 2020 ihmc3jn09hk
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+#include <gtest/gtest.h>
+
+#include <jwtpp/jwtpp.hh>
+#include <chrono>
+
+TEST(jwtpp, check_expire) {
+	auto future_t = std::chrono::system_clock::now() + std::chrono::seconds{30};
+	auto future = std::chrono::system_clock::to_time_t(future_t);
+
+	jwtpp::claims cl;
+
+	cl.set().exp(std::to_string(future));
+  
+	jwtpp::sp_rsa_key key;
+	jwtpp::sp_rsa_key pubkey;
+
+	jwtpp::sp_crypto r512;
+	jwtpp::sp_crypto r512_pub;
+
+	EXPECT_NO_THROW(key = jwtpp::rsa::gen(4096));
+	EXPECT_NO_THROW(pubkey = jwtpp::sp_rsa_key(RSAPublicKey_dup(key.get()), ::RSA_free));
+
+	EXPECT_NO_THROW(r512 = std::make_shared<jwtpp::rsa>(key, jwtpp::alg_t::RS512));
+	EXPECT_NO_THROW(r512_pub = std::make_shared<jwtpp::rsa>(pubkey, jwtpp::alg_t::RS512));
+
+	std::string bearer = jwtpp::jws::sign_bearer(cl, r512);
+
+	jwtpp::sp_jws jws;
+
+	EXPECT_NO_THROW(jws = jwtpp::jws::parse(bearer));
+  
+	auto now_t = std::chrono::system_clock::now();
+	auto now =std::chrono::system_clock::to_time_t(now_t);
+
+	auto vf = [&now](jwtpp::sp_claims cl) {
+		time_t &&future_s = std::stoll(cl->get().exp());
+		return 0 < difftime(future_s, now);
+	};
+
+	EXPECT_TRUE(jws->verify(r512_pub, vf));
+
+	auto vf_ = [&now](jwtpp::sp_claims cl) {
+		time_t &&future_s = std::stoll(cl->get().exp());
+		return 0 > difftime(now, future_s);
+	};
+
+	EXPECT_TRUE(jws->verify(r512_pub, vf_));
+}