diff --git a/main.zig b/main.zig
index 6d9a99356c38422248c5bf1a6f2afebe08ab4e05..594f700b0b5ad3e879a05d6004848fa036a1cd5f 100644
--- a/main.zig
+++ b/main.zig
@@ -6,21 +6,17 @@ pub fn main() !void {
     std.log.info("All your codebase are belong to us.", .{});
 }
 
-fn assertOk(dt: time.DateTime, comptime format: []const u8, expected: string) !void {
+fn assertOk(unix_ms: u64, comptime format: []const u8, expected: string) !void {
     const alloc = std.testing.allocator;
 
-    const actual = try dt.formatAlloc(alloc, format);
+    const actual = try time.DateTime.initUnixMs(unix_ms).formatAlloc(alloc, format);
     defer alloc.free(actual);
 
     try std.testing.expectEqualStrings(expected, actual);
 }
 
 // zig fmt: off
-const initUnix = time.DateTime.initUnix;
-test { try assertOk(initUnix(0),          "YYY-MM-DD HH:mm:ss", "1970-01-01 00:00:00"); }
-test { try assertOk(initUnix(1257894000), "YYY-MM-DD HH:mm:ss", "2009-11-10 23:00:00"); }
-test { try assertOk(initUnix(1634858430), "YYY-MM-DD HH:mm:ss", "2021-10-21 23:20:30"); }
-
-const initUnixMs = time.DateTime.initUnixMs;
-test { try assertOk(initUnixMs(1634858430023), "YYY-MM-DD HH:mm:ss.SSS", "2021-10-21 23:20:30.023"); }
-
+test { try assertOk(0,             "YYY-MM-DD HH:mm:ss", "1970-01-01 00:00:00"); }
+test { try assertOk(1257894000000, "YYY-MM-DD HH:mm:ss", "2009-11-10 23:00:00"); }
+test { try assertOk(1634858430000, "YYY-MM-DD HH:mm:ss", "2021-10-21 23:20:30"); }
+test { try assertOk(1634858430023, "YYY-MM-DD HH:mm:ss.SSS", "2021-10-21 23:20:30.023"); }