diff --git a/src/os/stat_darwin.go b/src/os/stat_darwin.go
index 74214cefa446e..b92ffd4a0a6ff 100644
--- a/src/os/stat_darwin.go
+++ b/src/os/stat_darwin.go
@@ -12,7 +12,7 @@ import (
 func fillFileStatFromSys(fs *fileStat, name string) {
 	fs.name = basename(name)
 	fs.size = fs.sys.Size
-	fs.modTime = timespecToTime(fs.sys.Mtimespec)
+	fs.modTime = time.Unix(fs.sys.Mtimespec.Unix())
 	fs.mode = FileMode(fs.sys.Mode & 0777)
 	switch fs.sys.Mode & syscall.S_IFMT {
 	case syscall.S_IFBLK, syscall.S_IFWHT:
@@ -41,11 +41,7 @@ func fillFileStatFromSys(fs *fileStat, name string) {
 	}
 }
 
-func timespecToTime(ts syscall.Timespec) time.Time {
-	return time.Unix(int64(ts.Sec), int64(ts.Nsec))
-}
-
 // For testing.
 func atime(fi FileInfo) time.Time {
-	return timespecToTime(fi.Sys().(*syscall.Stat_t).Atimespec)
+	return time.Unix(fi.Sys().(*syscall.Stat_t).Atimespec.Unix())
 }
diff --git a/src/os/stat_dragonfly.go b/src/os/stat_dragonfly.go
index 217bc6726d22c..316c26c7cab7a 100644
--- a/src/os/stat_dragonfly.go
+++ b/src/os/stat_dragonfly.go
@@ -12,7 +12,7 @@ import (
 func fillFileStatFromSys(fs *fileStat, name string) {
 	fs.name = basename(name)
 	fs.size = fs.sys.Size
-	fs.modTime = timespecToTime(fs.sys.Mtim)
+	fs.modTime = time.Unix(fs.sys.Mtim.Unix())
 	fs.mode = FileMode(fs.sys.Mode & 0777)
 	switch fs.sys.Mode & syscall.S_IFMT {
 	case syscall.S_IFBLK:
@@ -41,11 +41,7 @@ func fillFileStatFromSys(fs *fileStat, name string) {
 	}
 }
 
-func timespecToTime(ts syscall.Timespec) time.Time {
-	return time.Unix(ts.Sec, ts.Nsec)
-}
-
 // For testing.
 func atime(fi FileInfo) time.Time {
-	return timespecToTime(fi.Sys().(*syscall.Stat_t).Atim)
+	return time.Unix(fi.Sys().(*syscall.Stat_t).Atim.Unix())
 }
diff --git a/src/os/stat_freebsd.go b/src/os/stat_freebsd.go
index bab4ffa7984cf..919ee44dd6b50 100644
--- a/src/os/stat_freebsd.go
+++ b/src/os/stat_freebsd.go
@@ -12,7 +12,7 @@ import (
 func fillFileStatFromSys(fs *fileStat, name string) {
 	fs.name = basename(name)
 	fs.size = fs.sys.Size
-	fs.modTime = timespecToTime(fs.sys.Mtimespec)
+	fs.modTime = time.Unix(fs.sys.Mtimespec.Unix())
 	fs.mode = FileMode(fs.sys.Mode & 0777)
 	switch fs.sys.Mode & syscall.S_IFMT {
 	case syscall.S_IFBLK:
@@ -41,11 +41,7 @@ func fillFileStatFromSys(fs *fileStat, name string) {
 	}
 }
 
-func timespecToTime(ts syscall.Timespec) time.Time {
-	return time.Unix(int64(ts.Sec), int64(ts.Nsec))
-}
-
 // For testing.
 func atime(fi FileInfo) time.Time {
-	return timespecToTime(fi.Sys().(*syscall.Stat_t).Atimespec)
+	return time.Unix(fi.Sys().(*syscall.Stat_t).Atimespec.Unix())
 }
diff --git a/src/os/stat_js.go b/src/os/stat_js.go
index c3e9b5b5e5317..a137172e66de6 100644
--- a/src/os/stat_js.go
+++ b/src/os/stat_js.go
@@ -14,7 +14,7 @@ import (
 func fillFileStatFromSys(fs *fileStat, name string) {
 	fs.name = basename(name)
 	fs.size = fs.sys.Size
-	fs.modTime = timespecToTime(fs.sys.Mtime, fs.sys.MtimeNsec)
+	fs.modTime = time.Unix(fs.sys.Mtime, fs.sys.MtimeNsec)
 	fs.mode = FileMode(fs.sys.Mode & 0777)
 	switch fs.sys.Mode & syscall.S_IFMT {
 	case syscall.S_IFBLK:
@@ -43,12 +43,8 @@ func fillFileStatFromSys(fs *fileStat, name string) {
 	}
 }
 
-func timespecToTime(sec, nsec int64) time.Time {
-	return time.Unix(sec, nsec)
-}
-
 // For testing.
 func atime(fi FileInfo) time.Time {
 	st := fi.Sys().(*syscall.Stat_t)
-	return timespecToTime(st.Atime, st.AtimeNsec)
+	return time.Unix(st.Atime, st.AtimeNsec)
 }
diff --git a/src/os/stat_linux.go b/src/os/stat_linux.go
index d36afa9ffd5e7..316c26c7cab7a 100644
--- a/src/os/stat_linux.go
+++ b/src/os/stat_linux.go
@@ -12,7 +12,7 @@ import (
 func fillFileStatFromSys(fs *fileStat, name string) {
 	fs.name = basename(name)
 	fs.size = fs.sys.Size
-	fs.modTime = timespecToTime(fs.sys.Mtim)
+	fs.modTime = time.Unix(fs.sys.Mtim.Unix())
 	fs.mode = FileMode(fs.sys.Mode & 0777)
 	switch fs.sys.Mode & syscall.S_IFMT {
 	case syscall.S_IFBLK:
@@ -41,11 +41,7 @@ func fillFileStatFromSys(fs *fileStat, name string) {
 	}
 }
 
-func timespecToTime(ts syscall.Timespec) time.Time {
-	return time.Unix(int64(ts.Sec), int64(ts.Nsec))
-}
-
 // For testing.
 func atime(fi FileInfo) time.Time {
-	return timespecToTime(fi.Sys().(*syscall.Stat_t).Atim)
+	return time.Unix(fi.Sys().(*syscall.Stat_t).Atim.Unix())
 }
diff --git a/src/os/stat_netbsd.go b/src/os/stat_netbsd.go
index 11ebcacab85f1..919ee44dd6b50 100644
--- a/src/os/stat_netbsd.go
+++ b/src/os/stat_netbsd.go
@@ -12,7 +12,7 @@ import (
 func fillFileStatFromSys(fs *fileStat, name string) {
 	fs.name = basename(name)
 	fs.size = fs.sys.Size
-	fs.modTime = timespecToTime(fs.sys.Mtimespec)
+	fs.modTime = time.Unix(fs.sys.Mtimespec.Unix())
 	fs.mode = FileMode(fs.sys.Mode & 0777)
 	switch fs.sys.Mode & syscall.S_IFMT {
 	case syscall.S_IFBLK:
@@ -41,11 +41,7 @@ func fillFileStatFromSys(fs *fileStat, name string) {
 	}
 }
 
-func timespecToTime(ts syscall.Timespec) time.Time {
-	return time.Unix(ts.Sec, int64(ts.Nsec))
-}
-
 // For testing.
 func atime(fi FileInfo) time.Time {
-	return timespecToTime(fi.Sys().(*syscall.Stat_t).Atimespec)
+	return time.Unix(fi.Sys().(*syscall.Stat_t).Atimespec.Unix())
 }
diff --git a/src/os/stat_openbsd.go b/src/os/stat_openbsd.go
index 9df2d7f7737ef..316c26c7cab7a 100644
--- a/src/os/stat_openbsd.go
+++ b/src/os/stat_openbsd.go
@@ -12,7 +12,7 @@ import (
 func fillFileStatFromSys(fs *fileStat, name string) {
 	fs.name = basename(name)
 	fs.size = fs.sys.Size
-	fs.modTime = timespecToTime(fs.sys.Mtim)
+	fs.modTime = time.Unix(fs.sys.Mtim.Unix())
 	fs.mode = FileMode(fs.sys.Mode & 0777)
 	switch fs.sys.Mode & syscall.S_IFMT {
 	case syscall.S_IFBLK:
@@ -41,11 +41,7 @@ func fillFileStatFromSys(fs *fileStat, name string) {
 	}
 }
 
-func timespecToTime(ts syscall.Timespec) time.Time {
-	return time.Unix(ts.Sec, int64(ts.Nsec))
-}
-
 // For testing.
 func atime(fi FileInfo) time.Time {
-	return timespecToTime(fi.Sys().(*syscall.Stat_t).Atim)
+	return time.Unix(fi.Sys().(*syscall.Stat_t).Atim.Unix())
 }
diff --git a/src/os/stat_solaris.go b/src/os/stat_solaris.go
index 217bc6726d22c..316c26c7cab7a 100644
--- a/src/os/stat_solaris.go
+++ b/src/os/stat_solaris.go
@@ -12,7 +12,7 @@ import (
 func fillFileStatFromSys(fs *fileStat, name string) {
 	fs.name = basename(name)
 	fs.size = fs.sys.Size
-	fs.modTime = timespecToTime(fs.sys.Mtim)
+	fs.modTime = time.Unix(fs.sys.Mtim.Unix())
 	fs.mode = FileMode(fs.sys.Mode & 0777)
 	switch fs.sys.Mode & syscall.S_IFMT {
 	case syscall.S_IFBLK:
@@ -41,11 +41,7 @@ func fillFileStatFromSys(fs *fileStat, name string) {
 	}
 }
 
-func timespecToTime(ts syscall.Timespec) time.Time {
-	return time.Unix(ts.Sec, ts.Nsec)
-}
-
 // For testing.
 func atime(fi FileInfo) time.Time {
-	return timespecToTime(fi.Sys().(*syscall.Stat_t).Atim)
+	return time.Unix(fi.Sys().(*syscall.Stat_t).Atim.Unix())
 }