Tool

Yesterday Timestamp

Find the Unix timestamp for yesterday at 00:00:00 UTC and copy nearby reference timestamps for daily date ranges.

Yesterday at 00:00 UTC

Yesterday midnight is commonly used as the lower bound for daily reports, scheduled jobs, and log searches. Pair it with today midnight to query exactly one UTC day.

Avoid timezone drift

This reference uses UTC so that scripts behave the same on laptops, servers, CI jobs, and cloud functions. Convert to a local timezone only when the user-facing display requires it.