Answer: HRS
HRS is a crossword puzzle answer that we have spotted 318 times.
    - Little time
 
    - Action film "48 ___"
 
    - Divs. of days
 
    - "48___"
 
    - Mark McGwire stat: Abbr.
 
    - Abbr. in a marathon time
 
    - Time divs.
 
    - Stats for Sosa: Abbr.
 
    - Many mins.
 
    - Store posting: Abbr.
 
    - Time-card abbr.
 
    - Time pieces?: Abbr.
 
    - Mins. and mins.
 
    - "48___" (Nick Nolte film)
 
    - Academic units: Abbr.
 
    - Time abbr.
 
    - Dr.'s posting
 
    - 6:00, 7:00, 8:00, etc.: Abbr.
 
    - Big hits: Abbr.
 
    - Time meas.
 
    - Leftmost digital watch no.
 
    - Day divs.
 
    - Time sheet abbr.
 
    - Prof.'s posting
 
    - Timecard abbr.
 
    - Billing units: Abbr.
 
    - College credit units: Abbr.
 
    - 9 a.m. and 5 p.m.
 
    - Units in a coll. curriculum
 
    - Four-baggers: Abbr.
 
    - Crowd-thrilling hits: Abbr.
 
    - Ballpark figs.
 
    - Slugger's stat
 
    - 60-min. periods
 
    - Baseball stat.
 
    - Stats for Sosa (abbr.)
 
    - Fourbaggers, in MLB
 
    - Store's business sched.
 
    - Appt. book lines
 
    - Barry Bonds clouts, briefly
 
    - Marathoner's time units (abbr.)
 
    - Meas. of time
 
    - Mins. upon mins.
 
    - Time pieces (abbr.)
 
    - Barry Bonds blows, briefly
 
    - Lots of mins.
 
    - Ballpark swats (abbr.)
 
    - Baseball's greatest hits (abbr.)
 
    - Barry Bonds' clouts, briefly
 
    - Stat for Bonds (abbr.)
 
    - 9 - 5, e.g.
 
    - Big hits at Shea (abbr.)
 
    - "48 ___" (Eddie Murphy film)
 
    - Day divisions (abbr.)
 
    - Derby blasts, and key to this puzzle's theme
 
    - Time pieces? (abbr.)
 
    - 9:00 and 5:00 (abbr.)
 
    - Ballpark stats
 
    - Baseball blasts (abbr.)
 
    - Slugger's stats (abbr.)
 
    - Nolte/Murphy film "48___"
 
    - Store posting, briefly
 
    - Slugger's stat: Abbr.
 
    - DH's often have many
 
    - Stat for Babe Ruth: Abbr.
 
    - Over-the-wall wallops: Abbr.
 
    - Abbr. on a timecard
 
    - A.M. dozen
 
    - There are 720 in Sept.
 
    - Very few people live for a million of these: Abbr.
 
    - There are two doz. in a day
 
    - Doz. between 1100 and 2300
 
    - There are a doz. between midnight and noon
 
    - There are 17,531,640 every bimillennium: Abbr.
 
    - Day divisions, briefly
 
    - 9 a.m. to 5 p.m., e.g.
 
    - Store door nos.
 
    - MLB stat
 
    - MLB long balls
 
    - Nos. on a shop door, often
 
    - Time pieces: Abbr.
 
    - Dr.'s schedule
 
    - MD's schedule
 
    - "48 __"
 
    - Long shots: Abbr.
 
    - Base clearers: Abbr.
 
    - Box score abbrs.
 
    - They fill up the day: Abbr.
 
    - MLB statistic
 
    - They usually go over the wall: Abbr.
 
    - Day pts.
 
    - Baseball-card stats.
 
    - Appt.-book lines
 
    - Day fractions: Abbr.
 
    - Coll. units
 
    - Divs. of a day
 
    - Timecard stats.
 
    - Many min.
 
    - Slugger's stat.
 
    - 60-minute periods: Abbr.
 
    - Fractions of a day: Abbr.
 
    - Timecard stat.
 
    - Timecard figure: Abbr.
 
    - Midnight and noon: Abbr.
 
    - Pts. of a day
 
    - Time-sheet abbr.
 
    - Baseball-card abbr.
 
    - Paycheck fig., often
 
    - Paycheck fig.
 
    - There are 168 in a wk.
 
    - Paymaster's count, briefly
 
    - Brief time units in an Eddie Murphy film title
 
    - They're either a.m. or p.m.
 
    - 168 in a wk
 
    - Abbreviation in an Eddie Murphy film title
 
    - Daily segs.
 
    - B. Ruth's 714
 
    - "48 ___" (Eddie Murphy movie)
 
    - Abbr. on a store door
 
    - Smash hits, briefly
 
    - Time measures: Abbr.
 
    - 60-min. units
 
    - Timecard
 
    - Murphy film, "48 ___"
 
    - Aaron's 755 (Abbr.)
 
    - 86-Down billing units
 
    - "48___" (Eddie Murphy movie)
 
    - First periods in H.S., often
 
    - Noon and midnight: Abbr.
 
    - Stadium thrillers: Abbr.
 
    - Retail posting: Abbr.
 
    - They fill up the day, briefly
 
    - 6:00, 7:00, 8:00, etc. (Abbr.)
 
    - Nolte-Murphy film "48 ___"
 
    - Brief time pieces?
 
    - Certain swats, for short
 
    - Twice-daily dozen (Abbr.)
 
    - Grand slams, e.g. (Abbr.)
 
    - 120 min.= 2 __
 
    - "48 ___"
 
    - Ballpark feats (abbr.)
 
    - Twenty-fourths of a day (abbr.)
 
    - Round-trippers (abbr.)
 
    - Storefront info: abbr.
 
    - Coll. credits
 
    - Sluggers stats.
 
    - Shop posting: Abbr.
 
    - Paycheck abbr.
 
    - Billable units for an atty.
 
    - PM units
 
    - 120 min. = 2 ___
 
    - Day portions (Abbr.)
 
    - Storefront sign abbr.
 
    - Store-front sign abbr.
 
    - Storefront-sign abbr.
 
    - Time card abbr.
 
    - Day fractions (Abbr.)
 
    - Storefront sign stats
 
    - Store sign abbr.
 
    - 168ths of a wk.
 
    - 9-to-5 abbr.
 
    - 9 to 5, for ex.
 
    - Biz sign abbr.
 
    - Storefront stats
 
    - '48 ___'
 
    - Time-zone units (Abbr.)
 
    - Coll. credit units
 
    - Min. collections
 
    - Yr.'s 8,760
 
    - '48___' (Nick Nolte film)
 
    - 60-min. spans
 
    - Shop posting (abbr.)
 
    - Daily 24 (abbr.)
 
    - "48___" (Nick Nolte movie)
 
    - Day segments (Abbr.)
 
    - Some baseball scores: Abbr.
 
    - Timecard nos.
 
    - Mins. add up to them
 
    - Time units, abbr.
 
    - Timecard data: Abbr.
 
    - Shop window posting: Abbr.
 
    - Smash hits: Abbr.
 
    - Billable units (abbr.)
 
    - Wk.'s 168
 
    - Pujols blasts: Abbr.
 
    - Appt. book rows
 
    - M. Mantle's 536
 
    - MD office posting
 
    - Day fragments (Abbr.)
 
    - Day's two doz.
 
    - Diamond stat.
 
    - Pay stub abbr.
 
    - They may be game winners: Abbr.
 
    - Storefront abbr.
 
    - Many minutes
 
    - 168 in a wk.
 
    - Invoice nos.
 
    - Ballpark dingers: Abbr.
 
    - Slugger's stats
 
    - Sluggers' stats (Abbr.)
 
    - Baseball round-trippers: Abbr.
 
    - Postings on some store doors (abbr.)
 
    - "48 ___" (Murphy movie)
 
    - Appt. book divisions
 
    - Four-baggers, briefly
 
    - Shop door nos.
 
    - Many mins. equal them
 
    - Round trips, of a sort: Abbr.
 
    - Day's 24: Abbr.
 
    - Nelson Cruz hit 40 in 2014 (Abbr.)
 
    - "Another 48 ___"
 
    - Time periods (abbr.)
 
    - Store-window posting: Abbr.
 
    - Fourbaggers, briefly
 
    - They're often seen on S&L doors
 
    - Time units (abbr.)
 
    - "48___" (Eddie Murphy flick)
 
    - Stats for Stanton, Cruz and Trout
 
    - Slugger's stat, for short
 
    - Parts of a day (Abbr.)
 
    - Summary on a timecard: Abbr.
 
    - Billing nos.
 
    - Brief time units
 
    - Day sections (Abbr.)
 
    - The 168 in a wk.
 
    - Mins. comprise them
 
    - Open times, for short
 
    - Little League belts: Abbr.
 
    - Ballgame stat
 
    - Storefront listing: Abbr.
 
    - Info on a store door: Abbr.
 
    - The two doz. in a day
 
    - Pts. of days
 
    - 9 a.m. and 12 p.m.: Abbr.
 
    - MLB's 57-Down
 
    - Four-baggers, in MLB
 
    - Stats for sluggers (Abbr.)
 
    - Daily two dozen (Abbr.)
 
    - MLB stats
 
    - Shift specification: Abbr.
 
    - Some game enders: Abbr.
 
    - 9-5, e.g.
 
    - AT&T Park "splash hits"
 
    - Mins. x 60
 
    - Timecard measure: Abbr.
 
    - Info in a Yelp listing: Abbr.
 
    - Store sign figs.
 
    - Spans of 60 mins.
 
    - Four-baggers, for short
 
    - Stats for a slugger, briefly
 
    - Abbr. for the day's two dozen
 
    - Appt. book slots
 
    - Time open: Abbr.
 
    - Ruth's 714 or a day's 24
 
    - Some pay-stub stats.
 
    - Countdown abbr.
 
    - "48 ___" (Murphy film)
 
    - Baseball stats.
 
    - Base clearers, for short
 
    - Yr.'s 8,765.8
 
    - Some time units, briefly
 
    - Office data: Abbr.
 
    - MLB set a season record for them in 2017
 
    - Yelp info: Abbr.
 
    - Time units, ( abbr. )
 
    - Nine and five, in nine-to-five: Abbr.
 
    - 2 a.m. and 2 p.m.
 
    - Divs. of 111-Down
 
    - Brief time units?
 
    - 12:00 and 1:00: Abbr.
 
    - Way more than secs.
 
    - Store door posting: Abbr.
 
    - Time fractions
 
    - Murphy film "48 ___"
 
    - "48 ___" (film)
 
    - Brief time measures
 
    - GrubHub data: Abbr.
 
    - Many secs.
 
    - Day's 24, briefly
 
    - IHOP posting
 
    - What many mins. become
 
    - Museum posting: Abbr.
 
    - Appt. book blocks
 
    - Freelancers' units: Abbr.
 
    - Time sheet units: Abbr.
 
    - Day's two dozen: Abbr.
 
    - 12 a.m. and 12 p.m.
 
    - Shop sign nos.
 
    - Sixty-min. periods
 
    - A-Rod's 696
 
    - "48 ___" (1982 film)
 
    - Angels' big hits?: Abbr.
 
    - Univ. credits
 
    - Timecard entries: Abbr.
 
    - 9 to 5, say: Abbr.
 
    - Sidereal and credit: abbr.
 
    - Sidereal abbr.
 
    - Credit abbr.
 
    - Store door data: Abbr.
 
    - TV schedule divisions: Abbr.
 
    - They're made of mins.
 
    - Schedule info: Abbr.
 
    - Personnel depts., and what the personnel in 20-, 31-, 40- and 50-Across have in common
 
    - PO door posting
 
    - MLB blasts
 
    - There are 24 in a day (Abbr.)
 
    - Invoice info: Abbr.
 
    - A day has 24 (Abbr.)
 
    - Timesheet units (abbr.)
 
    - Movie runtime units (Abbr.)
 
    - Big hits, for short
 
    - They have 60 mins.
 
    - They're logged on a time sheet (Abbr.)
 
    - Bits of time?
 
    - Billing increments: Abbr.
 
    - Shift units: Abbr.
 
    - The "24" of 24/7
 
    - Base-clearing hits (Abbr.)