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Rime expands dates and clock times into their spoken form automatically. Most common formats work without any preprocessing.
For a tour of text normalization across all categories, see Text normalization. For specific patterns Rime doesn’t expand cleanly, see Pre-normalizing text.

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Dates

Rime supports a variety of date formats, with year:
US (MM/DD/YYYY) and ISO (YYYY-MM-DD) forms read with slightly different surface phrasing; “may twelfth…” vs. “the fifteenth of march…”. If wording consistency matters, pick one format.

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Times

Both am/pm and a.m./p.m. are accepted, with or without spaces between the time and the meridiem.

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Known gaps

A few specific date and time patterns aren’t reliably expanded; most commonly MM/DD without a year (04/21), month-and-year alone (07/2025), bare hours with meridiem (3pm without :00), decade names (1990s), financial periods (Q1 2025, 1H 2024), and European 15h30 times. For the full list and a drop-in prompt template to handle them, see Pre-normalizing text.