Utility scripts for dayjs. Shows how to get timestamp, date string and formatted data from dayjs library

dayjs_scripts.md

To get timestamp

dayjs().valueOf()
// 1598941800000

// OR

dayjs(`${selectedTime.year}-${selectedTime.month}-${dateValue}`).valueOf()
// 1598941800000

To supply dynamic date,month and year and achieve timestamp

dayjs(2020-09-01).valueOf()
// 1598941800000

To get date string (replica to date instance returned for new Date())

dayjs().toDate()
// Tue Sep 01 2020 12:00:00 GMT+0530 (India Standard Time)

// OR (for specific date)
dayjs(2020-09-01).toDate()
//  Tue Sep 01 2020 12:30:00 GMT+0530 (India Standard Time) 

// OR (dynamically pass values and obtain timestamp)
dayjs(`${selectedTime.year}-${selectedTime.month}-${dateValue}`).toDate()
// Tue Sep 01 2020 12:30:00 GMT+0530 (India Standard Time) 

To get data for specific timezone

dayjs().tz('Asia/Kolkata').toDate()
// Tue Sep 01 2020 12:30:00 GMT+0530 (India Standard Time) 
 
// OR

dayjs(`${selectedTime.year}-${selectedTime.month}-${dateValue}`).tz('Asia/Kolkata')

To convert one timestamp to another OR to retreive timestamp value in specific timezone

• get selected date,month and year and pass it into

 const currentTimeStamp = dayjs(
      `${date.getFullYear()}-${date.getMonth() + 1}-${date.getDate()}`
    )
      .tz('Asia/Kolkata')
      .hour(0)
      .minute(0)
      .valueOf();
    const lastDayOfCurrentMonth = dayjs(
      `${date.getFullYear()}-${date.getMonth() + 2}-${date.getDate()}`
    )
      .tz('Asia/Kolkata')
      .hour(0)
      .minute(0)
      .valueOf();