そう言えば、あれから３０年以上も経つのね。

Now that you mention it, it's been more than 30 years since then.

日が経つにつれて、天気は次第に悪化しつつあった。

The weather was getting worse and worse as the day went on.

時が経つのにつれて、フットボールの試合をより安全な競技にするために規則が付け加えられていったのです。

As time went on, rules were added to the game to make it safer.