I have data in json format that I'm having troubles converting to DateTime to use within my rails app.
json data
{"status": "ok", "data": [{"2014-06-16 16:00:00": 24.2},{"2014-06-17 12:00:00": 30.2},{"2014-06-18 17:00:00": 42.9}]} etc Controller
@data = JSON.parse(open(@source.url).read) dates = [] temps = [] @data['data'].each do |data| dates << data.keys temps << data.values end datetime = DateTime.parse(dates).strftime("%Q") Gives me
can't convert Array into String You are trying to parse an array not a string, because dates is an array. Parse each of the dates separately:
dates.flatten.each do |date| datetime = DateTime.parse(date) end 
datetime containing only the last date in the array. That doesn't seem useful but it's also not clear what end result the question is looking for. Maybe use map to create an array of all the dates as DateTimes?datetime will not even be set outside the each block. You must do something with it inside the block.dates, so dates is an array of arrays. Try dates.flatten.each...