Hello, We are suspecting that your timezone update tzdb 2022g is incorrectly accounting for America/Ojinaga. Our customer is a major airline in Mexico and they tell me the time should America/Ojinaga should be the same as America/Denver. They provide as evidence official announcements in Spanish language. For example: https://www.dof.gob.mx/nota_detalle.php?codigo=5672650&fecha=29/11/2022#gsc.... which says: "Artículo 5. III. Para el Estado de Baja California, así como para los municipios de Janos, Ascensión, Juárez, Praxedis G. Guerrero y Guadalupe, del Estado de Chihuahua, acorde a sus correlativos a su franja fronteriza, se aplica el meridiano 105 grados al oeste de Greenwich." I don't speak Spanish to be honest, my customer does. In the above the phrase seems to be "Juárez [...] del Estado de Chihuahua" which isreferring specifically to Ciudad Juárez in the State of Chihuahua. And then it says "el meridiano 105 grados al oeste de Greenwich" giving the degrees from Greenwich. They've given me some other references, but the above seems the most official. I would like to ask you to please double check which one is the correct. Best regards, Nikos P.S.: Please do not use my name or my company's name.