I am writing a mobile app and use 1H, 1D and 7D (English), which is 1H, 1G and 7GG (Italian). That extra G is messing up my layout.
Is it ok to use 7G? I know Italians use GG for plural form of days (giorni), but I am really constrained with space.
Here is the context (market change in last 1 hour, last 1 day and last 7 days):