https://archive.grafana.com/docs/grafana/v9.0/packages_api/data/datemath/
dateMath | Grafana documentation
dateMath namespace This API is provided as a preview for developers and may change based on feedback that we receive. Do not use this API in a production...
grafanadocumentation
https://clarle.github.io/yui2/docs/yui_2.9.0/docs/DateMath.js.html
API: datemath DateMath.js (YUI Library)
apijsyuilibrary