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@ -340,7 +340,7 @@ fn ndays_in_month(year: i32, month: u32) -> u32 {
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}
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fn add_months(date_time: NaiveDateTime, amount: i64) -> Option<NaiveDateTime> {
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let month = date_time.month0() as i64 + amount;
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let month = (date_time.month0() as i64).checked_add(amount)?;
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let year = date_time.year() + i32::try_from(month / 12).ok()?;
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let year = if month.is_negative() { year - 1 } else { year };
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@ -359,7 +359,7 @@ fn add_months(date_time: NaiveDateTime, amount: i64) -> Option<NaiveDateTime> {
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}
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fn add_years(date_time: NaiveDateTime, amount: i64) -> Option<NaiveDateTime> {
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let year = i32::try_from(date_time.year() as i64 + amount).ok()?;
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let year = i32::try_from((date_time.year() as i64).checked_add(amount)?).ok()?;
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let ndays = ndays_in_month(year, date_time.month());
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if date_time.day() > ndays {
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