African time reckoning is event-based and uses phenomena calendars rather than numerical calendars.

Evidence

The reckoning of time falls within a concrete and specific purpose in connection with events. This is why there are no numerical calendars in African culture. Instead, there are phenomena calendars which give meaning and place to time. An expectant mother counting the lunar months is a typical example of a phenomenon calendar. — Frans Dokman, Beyond Bantu Philosophy_…, 264

Categorization

• XREF: A genuinely cyclical, event-anchored time concept relevant to my long-standing interest in non-Western temporal frameworks.
• SHARE: An expectant mother counting lunar months as a phenomenon calendar is a vivid example for someone into cognitive anthropology of time.