Random unit conversions

As an SRE, we’re often measuring things in units of time. Eg. billions of requests per month, cost of running x in aws for y time, etc.

Seconds

Unit	Number of Seconds
Minute	60
Hour	3,600 (60 minutes × 60 seconds)
Day	86,400 (24 hours × 60 minutes × 60 seconds)
Week	604,800 (7 days × 86,400 seconds)
Month	2,629,746 (30.44 days × 86,400 seconds)
Year	31,536,000 (365 days × 86,400 seconds)

Minutes

Unit	Number of Minutes
Minute	1
Hour	60
Day	1,440 (24 hours × 60 minutes)
Week	10,080 (7 days × 1,440 minutes)
Month	43,800 (30.44 days × 1,440 minutes)
Year	525,600 (365 days × 1,440 minutes)

Hours

Unit	Number of Hours
Hour	1
Day	24
Week	168 (7 days × 24 hours)
Month	730.5 (30.44 days × 24 hours)
Year	8,760 (365 days × 24 hours)

1 Billion units per month

Unit	Number of Units per Month
Per Second	~380 (1,000,000,000 / 2,629,746 seconds)
Per Minute	~22,831 (1,000,000,000 / 43,829 minutes)
Per Hour	~1,369,863 (1,000,000,000 / 730 hours)
Per Day	~32,894,737 (1,000,000,000 / 30.44 days)
Per Week	~230,263,158 (1,000,000,000 / 4.35 weeks)
Per Month	1,000,000,000
Per Year	12,000,000,000 (1,000,000,000 × 12 months)