From 8c769d00ce53613f55d710ace3b7edc0173d3d0c Mon Sep 17 00:00:00 2001
From: Alexander Medvednikov <alexander@medvednikov.com>
Date: Wed, 11 Mar 2026 13:52:44 +0300
Subject: [PATCH] os: year-2038 problem (fixes #26664)

---
 vlib/os/os_nix.c.v                     | 2 +-
 vlib/os/os_structs_stat_default.c.v    | 8 ++++----
 vlib/os/os_structs_utsname_default.c.v | 4 ++--
 vlib/os/os_test.c.v                    | 7 +++----
 vlib/os/os_windows.c.v                 | 6 +++---
 5 files changed, 13 insertions(+), 14 deletions(-)

diff --git a/vlib/os/os_nix.c.v b/vlib/os/os_nix.c.v
index a3d89bdbb..526b43d11 100644
--- a/vlib/os/os_nix.c.v
+++ b/vlib/os/os_nix.c.v
@@ -201,7 +201,7 @@ fn native_glob_pattern(pattern string, mut matches []string) ! {
 
 // utime changes the access and modification times of the inode specified by path.
 // It returns POSIX error message, if it can not do so.
-pub fn utime(path string, actime int, modtime int) ! {
+pub fn utime(path string, actime i64, modtime i64) ! {
 	u := C.utimbuf{actime, modtime}
 	if C.utime(&char(path.str), &u) != 0 {
 		return error_with_code(posix_get_error_msg(C.errno), C.errno)
diff --git a/vlib/os/os_structs_stat_default.c.v b/vlib/os/os_structs_stat_default.c.v
index 45aca0076..d812b6d47 100644
--- a/vlib/os/os_structs_stat_default.c.v
+++ b/vlib/os/os_structs_stat_default.c.v
@@ -11,13 +11,13 @@ pub struct C.stat {
 	st_gid   u32
 	st_rdev  u64
 	st_size  u64
-	st_atime int
-	st_mtime int
-	st_ctime int
+	st_atime i64
+	st_mtime i64
+	st_ctime i64
 }
 
 pub struct C.__stat64 {
 	st_size  u64
 	st_mode  u32
-	st_mtime int
+	st_mtime i64
 }
diff --git a/vlib/os/os_structs_utsname_default.c.v b/vlib/os/os_structs_utsname_default.c.v
index 5782afffd..f10eeafec 100644
--- a/vlib/os/os_structs_utsname_default.c.v
+++ b/vlib/os/os_structs_utsname_default.c.v
@@ -10,6 +10,6 @@ mut:
 }
 
 pub struct C.utimbuf {
-	actime  int
-	modtime int
+	actime  i64
+	modtime i64
 }
diff --git a/vlib/os/os_test.c.v b/vlib/os/os_test.c.v
index b9c3caa02..02c3b6e30 100644
--- a/vlib/os/os_test.c.v
+++ b/vlib/os/os_test.c.v
@@ -1,5 +1,4 @@
 import os
-import time
 
 // tfolder will contain all the temporary files/subfolders made by
 // the different tests. It would be removed in testsuite_end(), so
@@ -1001,9 +1000,9 @@ fn test_utime() {
 		os.rm(filename) or { panic(err) }
 	}
 	f.write_string(hello) or { panic(err) }
-	atime := time.now().add_days(2).unix()
-	mtime := time.now().add_days(4).unix()
-	os.utime(filename, int(atime), int(mtime)) or { panic(err) }
+	atime := i64(2_147_483_648)
+	mtime := i64(2_306_102_495)
+	os.utime(filename, atime, mtime) or { panic(err) }
 	assert os.file_last_mod_unix(filename) == mtime
 }
 
diff --git a/vlib/os/os_windows.c.v b/vlib/os/os_windows.c.v
index 4bf1722c4..b8caa679d 100644
--- a/vlib/os/os_windows.c.v
+++ b/vlib/os/os_windows.c.v
@@ -114,8 +114,8 @@ mut:
 }
 
 pub struct C._utimbuf {
-	actime  int
-	modtime int
+	actime  i64
+	modtime i64
 }
 
 fn C._utime(&char, voidptr) i32
@@ -176,7 +176,7 @@ fn native_glob_pattern(pattern string, mut matches []string) ! {
 	}
 }
 
-pub fn utime(path string, actime int, modtime int) ! {
+pub fn utime(path string, actime i64, modtime i64) ! {
 	mut u := C._utimbuf{actime, modtime}
 	if C._utime(&char(path.str), voidptr(&u)) != 0 {
 		return error_with_code(posix_get_error_msg(C.errno), C.errno)
-- 
2.39.5