You can renew your drivers license three months prior to the expiration date.
Drivers license renewal can be done anytime within three months of the current license’s expiration date.
How early can you renew your drivers license?
(どのぐらい前から運転免許証の更新ができますか？)
期限切れの日− expiration date
renew - 更新
運転免免許証− drivers license
❶You can renew your drivers license three months prior to the expiration date.
(免許証は期限が切れる3ヶ月前から更新ができます)。
❷Drivers license renewal can be done anytime within three months of the current license’s expiration date.
(運転免許の更新は現在の免許の期限が切れる3ヶ月以前からなら、いつでもできます)。
アメリカ合衆国 
