golang conditionals on the time difference (sub)

I have two times, t1 and t2.
To calculate the difference, I use,

diff := t2.sub(t1)

The above code returns the difference like 10m30s, 1h3m59s etc.

I need to create some conditions for the difference.
For example,

if diff <= 5m {
   do this
}
if diff > 20m {
   do that
}

My question is if there is any built-in way to compare the time difference.

My other option would be to parse returned diff with regex and then compare. But I was looking for some efficient ways like the sub which the time package offers.

t2.Sub(t1) returns a duration, and you can simply use the comparison operators, for example:

d, _ := time.ParseDuration("4m4s")
if d <= 5 * time.Second {
	fmt.Println("<= than limit")
} else {
	fmt.Println("> than limit")
}

Way 1: When we use sub to get the duration

A very simple alternative is to directly use the output of the sub function. The func sub returns time.Duration type. So just adding .Minutes() method with it would serve the purpose in my case.

	t1 := time.Now()
	time.Sleep(60011 * time.Millisecond)
	t2 := time.Now()
	timeDiff := t2.Sub(t1)
	fmt.Println(timeDiff)
	fmt.Printf("\nIn just minites: %.f\n", timeDiff.Minutes())

Playground

Way 2: When we have the duration in string

If we would have the "difference" as a string ("10m2s") type then I believe we need to use the ParseDuration function. From the godocs ParseDuration
From the doc,

> ParseDuration parses a duration string. A duration string is a possibly signed sequence of decimal numbers, each with optional fraction and a unit suffix, such as "300ms", "-1.5h" or "2h45m". Valid time units are "ns", "us" (or "µs"), "ms", "s", "m", "h".

I am thinking of using it like the following,

t = "10h10m6s"
timeDiff, _ := time.ParseDuration(t)
numberOfHours := timeDiff.Hours()
numberOfMinutes := timeDiff.Minutes()
numberOfSeconds := timeDiff.Seconds()
numberofNanosec := timeDiff.Nanoseconds()

Find the example snippet on the playground

<strike>So in any of the above cases, we can use time.Minutes() to compare the duration.</strike>. As @gopher pointed out that to compare with any time range we do not need to convert it to any period of time (e,g Mintues(), Seconds()) but we can just compare with a required time period. As @Haris Osmanagić pointed out that this works for both of the output of ParseDuration and time.Sub() as they both returns time.Duration type. So we can do something like the following,

if timeDiff < 5 * time.Minutes() {
   do something
} else if timeDiff > 5 * time.Minutes(){
   do something else
} else {
   do nothing
}

An example is on the playground.