“If you currently have a PlayStation Plus or PlayStation Now membership, due to changes we are making to the service prior to launch, you won’t be able to redeem a voucher code for that service until your existing membership expires and deactivates,” Sony wrote, “or after the new PlayStation Plus service launches in your area, whichever happens first.
One month Now vouchers will redeem for 40 days of Plus Essential, 25 days of Plus Extra or 21 days of Plus Premium.
Three month Now vouchers will redeem for 105 days of Plus Essential, 66 days of Plus Extra or 53 days of Plus Premium.
Finally, 12 month Now vouchers will redeem for 365 days of Plus Essential, 219 days of Plus Extra or 183 days of Plus Premium.