The targo-hub container runs with TZ=UTC (no override set). Calls to
toLocaleDateString without an explicit timeZone option were rendering
dates in UTC, which meant a wrapper expiring at 23:59 EDT (= 03:59
UTC next day) showed "22 juin 2026" to the recipient instead of the
intended "21 juin".
All 4 date-formatting sites in lib/campaigns.js now pass
timeZone: 'America/Montreal' explicitly:
- worker (sendCampaignAsync) — main send path
- /campaigns/:id/recipients/:i/view — web fallback render
- POST /templates/:name/test-send sample defaults
- POST /templates/:name/preview sample defaults
Verified on prod: stored UTC "2026-06-22T03:59:59Z" now formats
"21 juin 2026" / "June 21, 2026" with the timeZone option, matching
the operator's intent ("expiration en fin de journée le 21 juin EDT").
Also re-patched the relance draft cmp-20260601-f857cd-rem from
2026-06-21T23:59:59Z (= 19:59 EDT, the early-evening cutoff) to
2026-06-22T03:59:59Z (= 23:59:59 EDT, true end of day). Bonus: this
aligns with the original campaign's recipients which expire around
~11:57-12:04 EDT on June 21, so the reminder always works at least
as long as the original — never the inverse confusion.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
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