LC Timezone issues

[kk-min]

There seem to be some issues with getting the correct 8am to 8am interval for LC due to the timezone. dayjs() by default will show the local time, so I assume whatever server the bot is running on is running on a timezone that is not UTC+8 (UTC?) Here's some suggestions on what we can do:

(Assumes default timezone is UTC)

Take all times via UTC

• LC resets at UTC midnight, so set the leftBound and rightBound to midnight of server date
• submissionDate will use actual hour of submission and submitted YYYYMMDD

Use dayjs().tz plugin

• Set the default timezone to 'Asia/Singapore' and parse all dates with .tz() (See here)
• Use SG time values

Offset the UTC time with +8 (i.e. assume LC resets 8am at UTC time)

• Add +8 hours to submissionDate, leftBound and rightBound
• Almost the same as option 1, just offsetting everything by 8 to get SG time values (but it is in UTC)
• Probably not a good idea 🤷