A debut that says 10:00 on a west-coast clock is not a 10:00 event on King Street. In winter the gap is brutal. In British Summer Time it is merely unkind. Collectors who set an alarm to the printed hour without converting it arrive at an empty window and blame the listing.
We convert before we letter the sheet. We write the UK hour in numerals large enough to survive a group chat screenshot. We note whether the listing already localises or whether it still assumes another zone. If the storefront changes the hour, the sheet gets a dated strikethrough — not a dramatic rewrite.
This is unglamorous work. It is also the difference between watching a character debut and reading about it the next morning. File Flow Core will not place a countdown on this website. A clock you converted yourself is enough theatre.