diff --git a/libc-test/semver/solarish.txt b/libc-test/semver/solarish.txt
index f2c0f4a11e3f6..0171eafa0ac20 100644
--- a/libc-test/semver/solarish.txt
+++ b/libc-test/semver/solarish.txt
@@ -78,3 +78,5 @@ posix_spawnattr_setsigmask
 posix_spawnp
 recvmsg
 sendmsg
+strftime
+strftime_l
diff --git a/src/unix/solarish/mod.rs b/src/unix/solarish/mod.rs
index b435463818635..a957df931d990 100644
--- a/src/unix/solarish/mod.rs
+++ b/src/unix/solarish/mod.rs
@@ -3202,6 +3202,21 @@ extern "C" {
     pub fn arc4random_uniform(upper_bound: u32) -> u32;
 
     pub fn secure_getenv(name: *const c_char) -> *mut c_char;
+
+    #[cfg_attr(target_os = "solaris", link_name = "__strftime_xpg7")]
+    pub fn strftime(
+        s: *mut c_char,
+        maxsize: size_t,
+        format: *const c_char,
+        timeptr: *const crate::tm,
+    ) -> size_t;
+    pub fn strftime_l(
+        s: *mut c_char,
+        maxsize: size_t,
+        format: *const c_char,
+        timeptr: *const crate::tm,
+        loc: crate::locale_t,
+    ) -> size_t;
 }
 
 #[link(name = "sendfile")]