-
InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
I don't know what you want to consider 'large scale', but I've definitely come across some Fortran code with dates in the comments from the 60s or 70s. Although the only I can find right now dates to 1983 (see https://github.com/nwh/lusol/blob/master/src/lusol_util.f#L3...).
NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a more popular project.