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@phts
Created September 30, 2014 15:47
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Ruby time interpolation arguments
  • %a - The abbreviated weekday name ("Sun")
  • %A - The full weekday name ("Sunday")
  • %b - The abbreviated month name ("Jan")
  • %B - The full month name ("January")
  • %c - The preferred local date and time representation
  • %d - Day of the month (01..31)
  • %H - Hour of the day, 24-hour clock (00..23)
  • %I - Hour of the day, 12-hour clock (01..12)
  • %j - Day of the year (001..366)
  • %m - Month of the year (01..12)
  • %M - Minute of the hour (00..59)
  • %p - Meridian indicator ("AM" or "PM")
  • %S - Second of the minute (00..60)
  • %U - Week number of the current year, starting with the first Sunday as the first day of the first week (00..53)
  • %W - Week number of the current year, starting with the first Monday as the first day of the first week (00..53)
  • %w - Day of the week (Sunday is 0, 0..6)
  • %x - Preferred representation for the date alone, no time
  • %X - Preferred representation for the time alone, no date
  • %y - Year without a century (00..99)
  • %Y - Year with century
  • %Z - Time zone name
  • %% - Literal "%" character

From ruby-doc

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