diff --git a/libc/src/time/gpu/nanosleep.cpp b/libc/src/time/gpu/nanosleep.cpp
index e84fe622100e8..34ff904c49c65 100644
--- a/libc/src/time/gpu/nanosleep.cpp
+++ b/libc/src/time/gpu/nanosleep.cpp
@@ -12,18 +12,19 @@
 
 namespace LIBC_NAMESPACE {
 
-constexpr uint64_t TICKS_PER_NS = 1000000000UL;
+constexpr uint64_t TICKS_PER_SEC = 1000000000UL;
 
 LLVM_LIBC_FUNCTION(int, nanosleep,
                    (const struct timespec *req, struct timespec *rem)) {
   if (!GPU_CLOCKS_PER_SEC || !req)
     return -1;
 
-  uint64_t nsecs = req->tv_nsec + req->tv_sec * TICKS_PER_NS;
+  uint64_t nsecs = req->tv_nsec + req->tv_sec * TICKS_PER_SEC;
+  uint64_t tick_rate = TICKS_PER_SEC / GPU_CLOCKS_PER_SEC;
 
   uint64_t start = gpu::fixed_frequency_clock();
 #if defined(LIBC_TARGET_ARCH_IS_NVPTX) && __CUDA_ARCH__ >= 700
-  uint64_t end = start + nsecs / (TICKS_PER_NS / GPU_CLOCKS_PER_SEC);
+  uint64_t end = start + (nsecs + tick_rate - 1) / tick_rate;
   uint64_t cur = gpu::fixed_frequency_clock();
   // The NVPTX architecture supports sleeping and guaruntees the actual time
   // slept will be somewhere between zero and twice the requested amount. Here
@@ -34,7 +35,7 @@ LLVM_LIBC_FUNCTION(int, nanosleep,
     nsecs -= nsecs > cur - start ? cur - start : 0;
   }
 #elif defined(LIBC_TARGET_ARCH_IS_AMDGPU)
-  uint64_t end = start + nsecs / (TICKS_PER_NS / GPU_CLOCKS_PER_SEC);
+  uint64_t end = start + (nsecs + tick_rate - 1) / tick_rate;
   uint64_t cur = gpu::fixed_frequency_clock();
   // The AMDGPU architecture does not provide a sleep implementation with a
   // known delay so we simply repeatedly sleep with a large value of ~960 clock
@@ -56,11 +57,11 @@ LLVM_LIBC_FUNCTION(int, nanosleep,
 
   // Check to make sure we slept for at least the desired duration and set the
   // remaining time if not.
-  uint64_t elapsed = (stop - start) * (TICKS_PER_NS / GPU_CLOCKS_PER_SEC);
+  uint64_t elapsed = (stop - start) * tick_rate;
   if (elapsed < nsecs) {
     if (rem) {
-      rem->tv_sec = (nsecs - elapsed) / TICKS_PER_NS;
-      rem->tv_nsec = (nsecs - elapsed) % TICKS_PER_NS;
+      rem->tv_sec = (nsecs - elapsed) / TICKS_PER_SEC;
+      rem->tv_nsec = (nsecs - elapsed) % TICKS_PER_SEC;
     }
     return -1;
   }