function dateiso --wraps='date' --description 'Utils around date'
    switch $argv[1]
        case no-tz
            date +"%Y-%m-%dT%H:%M:%S" -u
        case no-tz-local
            date +"%Y-%m-%dT%H:%M:%S"
        case timestamp
            date +"%Y-%m-%dT%H:%M:%S" -d "@$argv[2]"
        case email
            # 
            date --rfc-email
        case help
            echo -e "Options: \nno-tz => Without timezone \nno-tz-local => without timezone but local \ntimestamp => Convert a timestamp to ISO \nemail => date format email ! Not ISO 8601 !"
        case '*'
            date --iso-8601=seconds
            # Can also be taped `date -Is`
    end
end