diff --git a/src/time.rs b/src/time.rs
index e5287362f6..8b4c2d2a7a 100644
--- a/src/time.rs
+++ b/src/time.rs
@@ -56,7 +56,12 @@ impl ClockId {
         self.0
     }
 
-    #[cfg(any(linux_android, target_os = "emscripten", target_os = "fuchsia"))]
+    #[cfg(any(
+        linux_android,
+        target_os = "emscripten",
+        target_os = "fuchsia",
+        target_os = "openbsd",
+    ))]
     /// Starts at zero when the kernel boots and increments monotonically in SI seconds while the
     /// machine is running.
     pub const CLOCK_BOOTTIME: ClockId = ClockId(libc::CLOCK_BOOTTIME);
@@ -89,6 +94,7 @@ impl ClockId {
         freebsdlike,
         target_os = "emscripten",
         target_os = "fuchsia",
+        target_os = "openbsd",
         target_os = "redox",
     ))]
     /// Returns the execution time of the calling process.
@@ -139,11 +145,12 @@ impl ClockId {
         freebsdlike,
         target_os = "emscripten",
         target_os = "fuchsia",
+        target_os = "openbsd",
     ))]
     /// Returns the execution time of the calling thread.
     pub const CLOCK_THREAD_CPUTIME_ID: ClockId =
         ClockId(libc::CLOCK_THREAD_CPUTIME_ID);
-    #[cfg(freebsdlike)]
+    #[cfg(any(freebsdlike, target_os = "openbsd"))]
     /// Starts at zero when the kernel boots and increments monotonically in SI seconds while the
     /// machine is running.
     pub const CLOCK_UPTIME: ClockId = ClockId(libc::CLOCK_UPTIME);