DayTradingItalia

Universal Time Frame v1.1

Now it should work better but is only for intraday charts. There are some other glitches though; I'll try to fix them as soon as possible.
Open-source script

In true TradingView spirit, the author of this script has published it open-source, so traders can understand and verify it. Cheers to the author! You may use it for free, but reuse of this code in a publication is governed by House Rules. You can favorite it to use it on a chart.

Want to use this script on a chart?
//@version=2
study("Universal Time Frame", shorttitle = "uniTF", overlay=true)
higherRes = input("15", type=resolution)
upperBound = input(high, type=source)
lowerBound = input(low, type=source)

offsets = higherRes == "1" ? 1 : higherRes == "3" ? 3 : higherRes == "5" ? 5 : 
     higherRes == "15" ? 15 : higherRes == "30" ? 30 : higherRes == "45" ? 45 : higherRes == "60" ? 60 : na

isnb = change(time(higherRes))>0 ? 1 : 0
ubS = security(tickerid, higherRes, upperBound[1])
lbS = security(tickerid, higherRes, lowerBound[1])
of = offsets > interval ? round(offsets/interval) : 0

ub = isnb  ? na : ubS
lb = isnb  ? na : lbS

p1 = plot(isintraday and of ? ub : na, title="upperBound", color= lime, style=linebr, transp=70, offset= -of)
p2 = plot(isintraday and of ? lb : na, title="lowerBound", color= lime, style=linebr, transp=70, offset= -of)

fill(p1, p2, color=lime, transp=70)