diff --git a/include/mbedtls/platform.h b/include/mbedtls/platform.h
index 11a9ca1..a598434 100644
--- a/include/mbedtls/platform.h
+++ b/include/mbedtls/platform.h
@@ -62,7 +62,9 @@
 #if !defined(MBEDTLS_PLATFORM_NO_STD_FUNCTIONS)
 #include <stdio.h>
 #include <stdlib.h>
+#if defined(MBEDTLS_HAVE_TIME)
 #include <time.h>
+#endif
 #if !defined(MBEDTLS_PLATFORM_STD_SNPRINTF)
 #if defined(MBEDTLS_PLATFORM_HAS_NON_CONFORMING_SNPRINTF)
 #define MBEDTLS_PLATFORM_STD_SNPRINTF   mbedtls_platform_win32_snprintf /**< The default \c snprintf function to use.  */
diff --git a/library/x509_crl.c b/library/x509_crl.c
index e6efdca..0cd996d 100644
--- a/library/x509_crl.c
+++ b/library/x509_crl.c
@@ -52,11 +52,13 @@
 #define mbedtls_snprintf   snprintf
 #endif
 
+#if defined(MBEDTLS_HAVE_TIME)
 #if defined(_WIN32) && !defined(EFIX64) && !defined(EFI32)
 #include <windows.h>
 #else
 #include <time.h>
 #endif
+#endif
 
 #if defined(MBEDTLS_FS_IO) || defined(EFIX64) || defined(EFI32)
 #include <stdio.h>
diff --git a/library/x509_crt.c b/library/x509_crt.c
index c865444..73116ea 100644
--- a/library/x509_crt.c
+++ b/library/x509_crt.c
@@ -63,11 +63,13 @@
 #include "mbedtls/threading.h"
 #endif
 
+#if defined(MBEDTLS_HAVE_TIME)
 #if defined(_WIN32) && !defined(EFIX64) && !defined(EFI32)
 #include <windows.h>
 #else
 #include <time.h>
 #endif
+#endif
 
 #if defined(MBEDTLS_FS_IO)
 #include <stdio.h>
diff --git a/programs/fuzz/common.c b/programs/fuzz/common.c
index 4d58402..1af2446 100644
--- a/programs/fuzz/common.c
+++ b/programs/fuzz/common.c
@@ -5,15 +5,17 @@
 #include <stdlib.h>
 #include "mbedtls/ctr_drbg.h"
 
+#if defined(MBEDTLS_HAVE_TIME)
 mbedtls_time_t dummy_constant_time( mbedtls_time_t* time )
 {
     (void) time;
     return 0x5af2a056;
 }
+#endif
 
 void dummy_init()
 {
-#if defined(MBEDTLS_PLATFORM_TIME_ALT)
+#if (defined(MBEDTLS_HAVE_TIME) && defined(MBEDTLS_PLATFORM_TIME_ALT))
     mbedtls_platform_set_time( dummy_constant_time );
 #else
     fprintf(stderr, "Warning: fuzzing without constant time\n");
diff --git a/programs/fuzz/common.h b/programs/fuzz/common.h
index 5586c06..37495a6 100644
--- a/programs/fuzz/common.h
+++ b/programs/fuzz/common.h
@@ -1,4 +1,13 @@
+#if !defined(MBEDTLS_CONFIG_FILE)
+#include "mbedtls/mbedtls_config.h"
+#else
+#include MBEDTLS_CONFIG_FILE
+#endif
+
+#if defined(MBEDTLS_HAVE_TIME)
 #include "mbedtls/platform_time.h"
+#endif
+#include <stddef.h>
 #include <stdint.h>
 
 typedef struct fuzzBufferOffset
@@ -8,7 +17,9 @@
     size_t Offset;
 } fuzzBufferOffset_t;
 
+#if defined(MBEDTLS_HAVE_TIME)
 mbedtls_time_t dummy_constant_time( mbedtls_time_t* time );
+#endif
 void dummy_init();
 
 int dummy_send( void *ctx, const unsigned char *buf, size_t len );
diff --git a/scripts/data_files/query_config.fmt b/scripts/data_files/query_config.fmt
index 8b0057c..fa124f0 100644
--- a/scripts/data_files/query_config.fmt
+++ b/scripts/data_files/query_config.fmt
@@ -67,7 +67,9 @@
 #include "mbedtls/pk.h"
 #include "mbedtls/pkcs12.h"
 #include "mbedtls/pkcs5.h"
+#if defined(MBEDTLS_HAVE_TIME)
 #include "mbedtls/platform_time.h"
+#endif
 #include "mbedtls/platform_util.h"
 #include "mbedtls/poly1305.h"
 #include "mbedtls/ripemd160.h"