Unix timestamp units: seconds, milliseconds, microseconds and nanoseconds
Learn why a timestamp's unit must be named rather than inferred from its digits.
ReadUnix time explained
Exact epoch conversion without hidden assumptions
Understand units, negative values and explicit offsets before converting.
Negative Unix timestamps and the floor-division boundary
See why minus one nanosecond belongs to the final second before the epoch.
ReadWhy date-to-epoch input requires Z or a numeric offset
Avoid daylight-saving gaps and duplicate local clock readings by naming the offset.
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