Find all days in Google Location History on which you have been at a certain address

days_at_address.sh

# Find all unique days in your Google Takeout Semantic Location History
# on which you have been at a specific address.
#
# Usage: days_at_address <addr> [history files...]
#
# Example:
#
#  $ cd "Takeout/Location History (Timeline)/Semantic Location History"
#  $ days_at_address "Königsplatz 1, 80333 München, Deutschland" 2023/*.json
#  Output:
#  "2023-03-23"
#  "2023-07-12"
function days_at_address() {
  local addr=$1
  shift
  jq --arg address "$addr" '.timelineObjects | .[] 
    | select(.placeVisit.location.address==$address) 
    | .placeVisit.duration.startTimestamp 
    | sub("(?<time>.*)\\.[\\d]{3}(?<tz>.*)"; "\(.time)\(.tz)") 
    | fromdate | strftime("%Y-%m-%d")' "$@" \
  | sort -u
}