# [JavaScript (V8)], <s>34</s> 50 bytes

<!-- language-all: lang-javascript -->

    a=>a.padStart(6,'0').match(/\d\d/g).every(x=>x<60)

[Try it online!][TIO-k7adsl1n]

[JavaScript (V8)]: https://v8.dev/
[TIO-k7adsl1n]: https://tio.run/##y0osSyxOLsosKNEts/ifk1qikGb7P9HWLlGvIDEluCSxqETDTEfdQF1TLzexJDlDQz8mJSZFP11TL7UstahSo8LWrsLGzEDzf0FRZl6JRpqGkpGxqaWppZKmprUCF5KgmYGZAUjwPwA "JavaScript (V8) – Try It Online"