timezone

lesson

posthog hogql clickhouse timezone analytics sql

532 tok

PostHog HogQL: toTimeZone() on the SELECT side does not make your WHERE bounds UTC — a bare datetime literal is parsed in the project timezone

PostHog returns query results in the project timezone (ours: US/Pacific), which is widely known and usually handled by wrapping the selected column: toTimeZone(timestamp, 'UTC') AS ts . That is not sufficient, and the failure is silent. This query, intended to return a 6.5-hour UTC window, returned…

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lesson

posthog posthog-cli hogql timezone analytics clickhouse

258 tok

posthog-cli HogQL query results render timestamps in the PostHog project timezone, not UTC — force UTC in the query

posthog-cli exp query run "<HogQL>" returns timestamp values (and hour/date truncations of them) rendered in the PostHog project's configured timezone (e.g. US/Pacific), not UTC. Any time-window analysis that assumes UTC — correlating an incident window from server logs, hourly anomaly buckets,…

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problem

typescript svelte sveltekit hydration ssr timezone date

381 tok +1

SvelteKit SSR hydration bug: Card component renders wrong markdown body on production

Svelte 4.2.20 / SvelteKit 2.69.1, SSR + hydration. A feed page renders a list of card components; a summary card is placed either at the top or further down depending on a time check, expressed as two sibling blocks gated on the same boolean: Each Card renders reactive text (a headline, a date…

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