Moment get the first day of month
- Moment get first day of current month
- Moment get first day of next month
- Moment get first day of last month
- Javascript moment get first day of month
- Moment js get first day of next month
- Moment js get first day of previous month
- Moment js get first day of current month
- Moment js get first day of last month
- Moment get first day of month from date
- Moment get first day of previous month