Index: src/OFDate.m
==================================================================
--- src/OFDate.m
+++ src/OFDate.m
@@ -373,11 +373,11 @@
 	return element;
 }
 
 - (uint32_t)microsecond
 {
-	return nearbyint(remainder(seconds, 1) * 1000000);
+	return (uint32_t)nearbyint(remainder(seconds, 1) * 1000000);
 }
 
 - (uint8_t)second
 {
 	GMTIME_RET(tm_sec)

Index: src/OFThread.h
==================================================================
--- src/OFThread.h
+++ src/OFThread.h
@@ -164,21 +164,11 @@
  * \brief Suspends execution of the current thread for the specified time
  *	  interval.
  *
  * \param seconds The number of seconds to sleep
  */
-+ (void)sleepForTimeInterval: (int64_t)seconds;
-
-/**
- * \brief Suspends execution of the current thread for the specified time
- *	  interval.
- *
- * \param seconds The number of seconds to sleep
- * \param microseconds The number of microseconds to sleep
- */
-+ (void)sleepForTimeInterval: (int64_t)seconds
-		microseconds: (uint32_t)microseconds;
++ (void)sleepForTimeInterval: (double)seconds;
 
 /**
  * \brief Suspends execution of the current thread until the specified date.
  *
  * \param date The date to wait for

Index: src/OFThread.m
==================================================================
--- src/OFThread.m
+++ src/OFThread.m
@@ -156,42 +156,26 @@
 + (OFThread*)currentThread
 {
 	return [[of_tlskey_get(threadSelf) retain] autorelease];
 }
 
-+ (void)sleepForTimeInterval: (int64_t)seconds
++ (void)sleepForTimeInterval: (double)seconds
 {
 	if (seconds < 0)
 		@throw [OFOutOfRangeException newWithClass: self];
 
 #ifndef _WIN32
 	if (seconds > UINT_MAX)
 		@throw [OFOutOfRangeException newWithClass: self];
 
 	sleep((unsigned int)seconds);
+	usleep((uint32_t)nearbyint(remainder(seconds, 1) * 1000000));
 #else
 	if (seconds * 1000 > UINT_MAX)
 		@throw [OFOutOfRangeException newWithClass: self];
 
-	Sleep((unsigned int)seconds * 1000);
-#endif
-}
-
-+ (void)sleepForTimeInterval: (int64_t)seconds
-		microseconds: (uint32_t)microseconds
-{
-	if (seconds < 0)
-		@throw [OFOutOfRangeException newWithClass: self];
-
-#ifndef _WIN32
-	sleep((unsigned int)seconds);
-	usleep(microseconds);
-#else
-	if (seconds * 1000 + microseconds / 1000 > UINT_MAX)
-		@throw [OFOutOfRangeException newWithClass: self];
-
-	Sleep((unsigned int)seconds * 1000 + microseconds / 1000);
+	Sleep((unsigned int)(seconds * 1000));
 #endif
 }
 
 + (void)sleepUntilDate: (OFDate*)date
 {
@@ -200,16 +184,16 @@
 #ifndef _WIN32
 	if (seconds > UINT_MAX)
 		@throw [OFOutOfRangeException newWithClass: self];
 
 	sleep((unsigned int)seconds);
-	usleep(nearbyint(remainder(seconds, 1) * 1000000));
+	usleep((uint32_t)nearbyint(remainder(seconds, 1) * 1000000));
 #else
 	if (seconds * 1000 > UINT_MAX)
 		@throw [OFOutOfRangeException newWithClass: self];
 
-	Sleep(seconds * 1000);
+	Sleep((unsigned int)(seconds * 1000));
 #endif
 }
 
 + (void)yield
 {